The viewport playback speed in max is a bit wonky can't really be trusted. Animation > Make Preview will give you a quick viewport render that will help you nail down the timing.
I bound it to Alt-P I use it so much, or maybe that's the default now... not sure.
As far as being faithful to the ref, it seems fine. It's a little stiff and could use some squash/stretch and not really reacting to the added objects but if the goal was to hit as close as possible to the ref I think you did it. If you're aiming to make this a ball bounce on its own it needs some work.
Last edited by Mark Dygert; 12-03-2009 at 09:33 AM..