Just done a quick run today, quickened the pace from 60 frames for 6 steps down to 55 frames. Think it gives it a bit more speed (obviously!). Used the graph editor a lot on this to get foot positions right, and the feet should arc into position and not fall back onto a spot as they're planted so overall I quite like it. Crits welcome!
Run 55 Frames from Spangles on Vimeo.