I have slowed down enough to not be popping the flies off on the backstroke, but could probably stand to slow down some more. I know I still try to use a lot of the same motions involved with spin casting. Lots of old habits to try to break here.
Heck, popping them off is why I got excited about tying flies! Not because it is cheaper, but because it is less embarrassing to go buy the materials than it is to admit you are buying more flies because your casting sucks.
I need to try it then. Anything that might help is probably a very good thing.