June 17, 2008
Author's Response:
It depends on your movie frame per second. Sometimes only having one frame of the sprite per one frame on the flash file can make the resulting animation too fast. In this case it is best to either lower the overall frames per second, or span that single sprite frame over multiple frames in the timeline.
Smoothness will also depend on the quality of the sprite sheet you are utilising - how many 'in-between' states etc. A 16 frame running animation will always look smoother than a 2 frame one.
Hope that answers your question.