Just ran your samples and I see similar results here except that the number of exact stop moves I see at the front is different. That might be down to our different lookahead settings/steps per/motor tuning etc. However when I take the F off from every line (just stick it in once at the beginning) on my system they BOTH run in CV just as they should. I'm guessing it's more of a case that the F on every line is killing the interpreter on small moves.
Looks to me like your CAM/POST could do with a slap