Dave,
That’s probably the most prudent advice. My mistake in production is certainly causing more of a headache in post than I imagined.
I managed to get a better track in Mocha by using the B-spline tool and doing a tighter bezier shape around one of the more stable drawings. I also ticked the “small motion” tag which kept it looking for more subtle motions (3 pixels or so according to the manual).
-V