[tomsthumb]

Explosive power is pretty important though, and this would be a nice way to train it outside of campus boarding which gives you one movement on each side of your body. This gives an avenue for a lot of different movement, but then there are system boards for that as well and those are a little more "quantifiable". Maybe this would be a good way to mix it up of you're bored of system boarding?

I agree about being cautious about using this. It seems like a good way for new people to mess up their shoulders. The thought of hitting crimps that hard/fast is terrifying.

I do really want to take some of my friends who climb like Fred Nicole (super slow and static as possible) and make them use this though. Sometimes utilizing momentum is important. Sometimes climbing everything static is a huge waste of energy and is actually bad technique, despite being generally safer and better for training outright strength (as opposed to power).