diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index cac18cc6..adfd720b 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -31,6 +31,7 @@ import dask.dataframe as dd
 from dask.delayed import delayed
 import pyarrow.parquet as pq
 import pyarrow as pa
+from pyarrow.lib import ArrowInvalid
 
 from django.utils import timezone
 from django.utils.timezone import get_current_timezone
@@ -198,7 +199,12 @@ def get_video_data(w,groups=['basic'],mode='water'):
                 if dict(rowingmetrics)[c]['numtype'] == 'integer':
                     data[c] = df2[c].astype(int).tolist()
                 else:
-                    data[c] = df2[c].values.tolist()
+                    sigfigs = dict(rowingmetrics)[c]['sigfigs']
+                    if (c != 'pace'):
+                        da = ((10**sigfigs)*df2[c]).astype(int)/(10**sigfigs)
+                    else:
+                        da = df2[c]
+                    data[c] = da.values.tolist()
                 metrics[c] = {
                     'name': dict(rowingmetrics)[c]['verbose_name'],
                     'metric': c,
@@ -1867,7 +1873,7 @@ def getsmallrowdata_db(columns, ids=[], doclean=True,workstrokesonly=True,comput
     else:
         try:
             df = pd.read_parquet(csvfilenames[0],columns=columns)
-        except OSError:
+        except (OSError,ArrowInvalid):
             rowdata,row = getrowdata(id=ids[0])
             if rowdata and len(rowdata.df):
                 data = dataprep(rowdata.df,id=ids[0],bands=True,otwpower=True,barchart=True)
diff --git a/rowers/metrics.py b/rowers/metrics.py
index 57d2ba77..242cfe56 100644
--- a/rowers/metrics.py
+++ b/rowers/metrics.py
@@ -56,7 +56,8 @@ rowingmetrics = (
         'ax_max': 1e5,
         'mode':'both',
         'type': 'basic',
-        'group':'basic'}),
+        'group':'basic',
+        'sigfigs': -1}),
 
     ('hr',{
         'numtype':'integer',
@@ -66,7 +67,8 @@ rowingmetrics = (
         'ax_max': 200,
         'mode':'both',
         'type': 'basic',
-        'group':'athlete'}),
+        'group':'athlete',
+        'sigfigs':0,}),
 
     ('pace',{
         'numtype':'float',
@@ -76,6 +78,7 @@ rowingmetrics = (
         'ax_max': 1.0e3*75,
         'mode':'both',
         'type': 'basic',
+        'sigfigs': 1,
         'group': 'basic'}),
 
     ('velo',{
@@ -86,6 +89,7 @@ rowingmetrics = (
         'ax_max': 8,
         'default': 0,
         'mode':'both',
+        'sigfigs': 1,
         'type':'pro',
         'group': 'basic'}),
 
@@ -106,6 +110,7 @@ rowingmetrics = (
         'ax_min': 15,
         'ax_max': 45,
         'mode':'both',
+        'sigfigs': 1,
         'type': 'basic',
         'group':'basic'}),
 
@@ -116,6 +121,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 1000,
         'mode':'both',
+        'sigfigs': 0,
         'type': 'pro',
         'group':'forcepower'}),
 
@@ -126,6 +132,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 600,
         'mode':'both',
+        'sigfigs': 0,
         'type': 'basic',
         'group':'forcepower'}),
 
@@ -136,6 +143,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 1200,
         'mode':'both',
+        'sigfigs': 0,
         'type': 'pro',
         'group':'forcepower'}),
 
@@ -145,6 +153,7 @@ rowingmetrics = (
         'verbose_name': 'Peak Drive Force (N)',
         'ax_min': 0,
         'ax_max': 1500,
+        'sigfigs': 0,
         'mode':'both',
         'type': 'pro',
         'group':'forcepower'}),
@@ -156,6 +165,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 2.5,
         'mode':'rower',
+        'sigfigs': 2,
         'type': 'pro',
         'group':'stroke'}),
 
@@ -165,6 +175,7 @@ rowingmetrics = (
         'verbose_name': 'Average/Peak Force Ratio',
         'ax_min': 0,
         'ax_max': 1,
+        'sigfigs': 2,
         'mode':'both',
         'type': 'pro',
         'group': 'forcepower'}),
@@ -175,6 +186,7 @@ rowingmetrics = (
         'verbose_name': 'Interval Distance (m)',
         'ax_min': 0,
         'ax_max': 1e5,
+        'sigfigs': 0,
         'mode':'both',
         'type': 'basic',
         'group':'basic'}),
@@ -186,6 +198,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 1e5,
         'mode':'both',
+        'sigfigs': 0,
         'type': 'basic',
         'group':'basic'}),
 
@@ -196,10 +209,12 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 4,
         'default': 0,
+        'sigfigs': 2,
         'mode':'both',
         'type': 'pro',
         'group': 'stroke'}),
 
+
     ('catch',{
         'numtype':'float',
         'null':True,
@@ -207,6 +222,7 @@ rowingmetrics = (
         'ax_min': -40,
         'ax_max': -75,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group': 'stroke'}),
@@ -218,6 +234,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 20,
         'default': 0,
+        'sigfigs': 1,
         'mode':'water',
         'type': 'pro',
         'group': 'stroke'}),
@@ -229,6 +246,7 @@ rowingmetrics = (
         'ax_min': 20,
         'ax_max': 55,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group': 'stroke'}),
@@ -240,6 +258,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 30,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group': 'stroke'}),
@@ -251,6 +270,7 @@ rowingmetrics = (
         'ax_min': -50,
         'ax_max': 50,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group':'stroke'}),
@@ -263,6 +283,7 @@ rowingmetrics = (
         'ax_min': 40,
         'ax_max': 140,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group':'stroke'}),
@@ -275,6 +296,7 @@ rowingmetrics = (
         'ax_min': 40,
         'ax_max': 140,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group':'stroke'}),
@@ -286,6 +308,7 @@ rowingmetrics = (
         'ax_min': 20,
         'ax_max': 55,
         'default': 1.0,
+        'sigfigs': 0,
         'mode':'erg',
         'type': 'pro',
         'group':'stroke'}),
@@ -297,6 +320,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 110,
         'default': 0,
+        'sigfigs': 0,
         'mode':'water',
         'type': 'pro',
         'group':'forcepower'}),
@@ -308,6 +332,7 @@ rowingmetrics = (
         'ax_min': 0,
         'ax_max': 15,
         'default': 0,
+        'sigfigs': 1,
         'mode':'both',
         'type': 'basic',
         'group':'basic'}),
diff --git a/rowers/templates/embedded_video.html b/rowers/templates/embedded_video.html
index 374bc716..d144fe0a 100644
--- a/rowers/templates/embedded_video.html
+++ b/rowers/templates/embedded_video.html
@@ -121,6 +121,7 @@
       var player;
       var playing = false;
       var dataplaying = false;
+
       var videotime = 0;
       var data = JSON.parse('{{ data|safe }}');
       {% for id, metric in metrics.items %}
@@ -229,6 +230,7 @@
         } else {
           if (!dataplaying) {
             output.value = Math.round(datatime)-Math.round(videotime);
+            document.getElementById("time").innerHTML = Math.round(videotime);
           }
         }
 
@@ -241,10 +243,12 @@
 
       // call this function when player state changes
       function onPlayerStateChange(event) {
-        if (event.data == YT.PlayerState.PLAYING) {
-
-        } else {
-
+        if (event.data == YT.PlayerState.PLAYING && lock.checked) {
+          var dataplay = document.getElementById("dataplay").childNodes[0];
+          dataplay.value = String.fromCharCode(10074,10074);
+        } else if (lock.checked) {
+          var dataplay = document.getElementById("dataplay").childNodes[0];
+          dataplay.value = String.fromCharCode(9658);
         }
       }
     </script>
@@ -314,15 +318,43 @@
 </form>
 <script>
   $(document).ready( function() {
+    // cookie reader
+    function createCookie(name,value,days) {
+      if (days) {
+        var date = new Date();
+        date.setTime(date.getTime()+(days*24*60*60*1000));
+        var expires = "; expires="+date.toGMTString();
+      }
+      else var expires = "";
+      document.cookie = name+"="+value+expires+"; path=/";
+    }
+    function readCookie(name) {
+      var nameEQ = name + "=";
+      var ca = document.cookie.split(';');
+      for(var i=0;i < ca.length;i++) {
+        var c = ca[i];
+        while (c.charAt(0)==' ') c = c.substring(1,c.length);
+        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
+      }
+      return null;
+    }
   // lock
   var lock = document.getElementById("lock");
-  // lock.onchange nog doen
   var output = document.getElementById("id_delay");
+  var cookie = readCookie("lock");
+  var delay = output.value;
+  if (cookie=="true") {
+    lock.checked = true;
+    output.disabled = true;
+  }
+
+  // lock.onchange nog doen
+
   {% if locked %}
   lock.checked = true;
   output.disabled = true;
   {% endif %}
-  var delay = output.value;
+
 
   // slider
   var slider = document.getElementById("myRange");
@@ -407,20 +439,18 @@
     slider.value = this.value+Math.round(player.getCurrentTime());
   }
 
-  // lock delay form field if checkbox checked
-  lock.oninput = function() {
-    if (this.checked) {
-      output.disabled = true;
-    } else {
-      output.disabled = false;
-    }
-  }
+
   // Update the current slider value (each time the slider is changed)
   slider.onchange = function() {
     clearInterval(timeupdater)
     if (lock.checked) {
       if (this.value-output.value > 0) {
         player.seekTo(this.value-output.value);
+        if (playing) {
+          player.playVideo();
+        } else {
+          player.pauseVideo();
+        }
       } else {
         if (playing) {
           player.seekTo(0);
@@ -482,8 +512,10 @@
   lock.oninput = function() {
     if (this.checked) {
       output.disabled = true;
+      createCookie("lock","true",0);
     } else {
       output.disabled = false;
+      createCookie("lock","false",0);
     }
 }
 // Slider start stop
@@ -528,7 +560,11 @@ function clock() {
 
     if (lock.checked) {
       player.seekTo(c+parseInt(output.value));
+    } else {
+        delay = Math.round(slider.value)-Math.round(player.getCurrentTime());
+        output.value = Math.round(slider.value)-Math.round(player.getCurrentTime());
     }
+
     if (c == latitude.length) {
       clearInterval(timer);
       c = 0;
@@ -539,7 +575,7 @@ function clock() {
 // onderstaande alleen als lock.checked
 var dataplay = document.createElement("input");
 dataplay.type = "button";
-dataplay.value = "Play";
+dataplay.value = String.fromCharCode(9658);
 document.getElementById("dataplay").appendChild(dataplay);
 
 // var datastop = document.createElement("input");
@@ -552,24 +588,24 @@ dataplay.onclick = function() {
     dataplaying = false;
     if (playing == false) {
       player.playVideo();
-      dataplay.value = "Pause";
+      dataplay.value = String.fromCharCode(10074,10074);
       playing = true;
     } else {
       player.pauseVideo();
-      dataplay.value = "Play";
+      dataplay.value = String.fromCharCode(9658);
       playing = false;
     }
   } else {
     if (!dataplaying) {
       clock();
-      dataplay.value = "Pause";
+      dataplay.value = String.fromCharCode(10074,10074);
       dataplaying = true;
       if (lock.checked) {
         playing = true;
       }
     } else {
       clearInterval(timer);
-      dataplay.value = "Play";
+      dataplay.value = String.fromCharCode(9658);
       dataplaying = false;
     }
   }