diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 8b32ff78..b6f3124d 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -1003,13 +1003,14 @@ def checkbreakthrough(w, r):
                         r.user.last_name,
                         btvalues=btvalues.to_json())
         for coach in r.get_coaches():
-            _ = myqueue(queuehigh, handle_sendemail_breakthrough,
-                        w.id,
-                        coach.user.email,
-                        r.user.first_name,
-                        r.user.last_name,
-                        btvalues=btvalues.to_json(),
-                        surname=True)
+            if coach.getemailnotifications and not coach.emailbounced:
+                _ = myqueue(queuehigh, handle_sendemail_breakthrough,
+                            w.id,
+                            coach.user.email,
+                            r.user.first_name,
+                            r.user.last_name,
+                            btvalues=btvalues.to_json(),
+                            surname=True)
 
     # submit email task to send email about breakthrough workout
     if ishard:  # pragma: no cover
@@ -1024,13 +1025,14 @@ def checkbreakthrough(w, r):
                         r.user.last_name,
                         btvalues=btvalues.to_json())
         for coach in r.get_coaches():
-            _ = myqueue(queuehigh, handle_sendemail_hard,
-                        w.id,
-                        coach.user.email,
-                        r.user.first_name,
-                        r.user.last_name,
-                        btvalues=btvalues.to_json(),
-                        surname=True)
+            if coach.getemailnotifications and not coach.emailbounced:
+                _ = myqueue(queuehigh, handle_sendemail_hard,
+                            w.id,
+                            coach.user.email,
+                            r.user.first_name,
+                            r.user.last_name,
+                            btvalues=btvalues.to_json(),
+                            surname=True)
 
     return isbreakthrough, ishard
 
diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index cc86876b..cf7151b4 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -5783,7 +5783,7 @@ def interactive_flex_chart2(id, r, promember=0,
         workstrokesonly = False
     try:
         _ = rowdata[yparam2]
-    except KeyError:  # pragma: no cover
+    except (KeyError, TypeError):  # pragma: no cover
         yparam2 = 'None'
 
     try:
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 477c2a27..f64f8531 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ
diff --git a/rowers/utils.py b/rowers/utils.py
index 7572d7f5..de07d4f7 100644
--- a/rowers/utils.py
+++ b/rowers/utils.py
@@ -326,7 +326,7 @@ def isbreakthrough(delta, cpvalues, p0, p1, p2, p3, ratio):
     cpvalues = cpvalues.values.astype(int)
     pwr = pwr.astype(int)
 
-    res = np.sum(cpvalues > pwr)
+    res = np.sum(cpvalues > pwr+1)
     res2 = np.sum(cpvalues > pwr2)
 
     btdf = pd.DataFrame(