PS. When you delete a path it doesn't go away but rather stays there until you refresh the rig by moving a bone.

I wonder if @Campbell Barton (campbellbarton) may have already looked at this and addressed it, because it used to be a 100% consistent crash but now it works fine.

Correction, this bug only pops up when the "Only Insert Available" is checkmarked in the user preferences.

(sorry for the late reply, didn't see the notification)

This is brilliant, I have often had the headache of the paths being almost invisible in a busy scene and this give you the right tools to fix that yourself, based on your particular shot. I totally would like to see this in the master! :)

Yeah that's a fair point. Honestly the main issue I had with this was in "Drivers" within the graph editor. When using the "F-Curves" I'd want there to be snapping but it just makes no sense having it in "Drivers" ...the x-axis there should function exactly like the y-axis does right now.