Thanks for the tips... I really do appreciate it. I've got a pick-up game tonight, and I'm going to try Chasedog's trick - the kneepads under the goal pads - and see how it goes... obviously, I'll be loosening my upper pad straps. We'll see.
Werner: I think my pads are the pad-rotation problem. The channel's not too deep, and there's no real knee protection or 'landing gear'
That's why I'll give the kneepad trick a shot...
and if that doesn't do it for me, I'll be looking for advice on self-installing some knee lifts... (and, yes, as a newbie, I *will* do a search first!)
Thanks again