Well I love my JT kneepads, (Hello JT, did you hear that, sponsorship purlease?).
Especially on grass, you can slide for miles on these babies. Once slid to a barricade and right out the other side
I wear mine to stop my knee f##king up worse than it already is, not to obtain the odd bouncer.
My advice is ask about, see if you can borrow someones for a game. As always in paintball, try before you buy.