Aggressive ball — 3rd attempt

 

Further experimentation with the 'aggressive' ball idea. This time I reverted back to using Photoshop's marquee tool to create the shapes so that I could focus purely on the speed and spacing.

Initially, I thought it was too fast so I lowered the frame rate very slightly to slow it down a little:

I think the slower one is much smoother, but I think the faster version has the kind of aggression I was going for.