http://www.youtube.com/watch?v=oxnKjVfPH1I < this one
http://www.youtube.com/watch?v=GORwUVrZsWI
http://www.youtube.com/watch?v=3dDgsZQce3g
http://www.youtube.com/watch?v=lA8TnezIfx8
http://www.youtube.com/watch?v=luBKYVfQJ30

Yeah I hate the staging and editing too, much prefer just raw video. Here's another one that is not mine.

http://www.youtube.com/watch?v=ZL0PzmPHgTQ

I think part of what's happened is that rock crawling competitions, with artificial courses and rules, have created their own (artificial) class of vehicle. It's precise, slow, and can manuever without reversing (dig). Looking at my AX10, the control is 'tight', the simple tranny has little slop and it's agile without being wild.

The summit really doesn't play to these rules. It's in the super class but it lacks rear steering. The 3 to 4 inches of tranny slop is also undesireable on a crawling course where you are required to manuever in a tight course and penalized heavily for touching a goal post. Some of the techiques used by the summit (backing up then accelerating and 'barreling over' an obstacle, or jumping over a crevasse rather than traversing it) seem very anti-crawlerish indeed. You'd never do them at a competition. But if you've got to cross some rocks in general, they make sense.