[WhiteDragon]

Yep, we do it on Classic, though our whole HP system is scripted. You can see it in action at the spar arena above the bank.

I believe this is possible on default systems, it can just be a pain to make sure people don't use it to get fast heals (run in & out, or run in, r/c & run out, or various other combos) rather than spar.