We just roll for the last 10 to 15 minutes of every class, usually starting from our knees, switching partners every 2 minutes. Most of the time, I drop onto my back into gaurd. Almost every class, I get at least one guy, wondering why the hell I'm doing it. And the one guy that was helping teach the class today said something about not doing it, since I give up points. Does anybody else do this? Is it really that big of a deal or should I try to stay away from doing it?