I am grip-less and proud of it! i do hadstand-flyaway and sole circles (not giants cuz they freak me out... but thats another story) withour]t grips and i've sort of stopped getting rips. once your hads build up good caluses they don't rip very often. also, when they do rip there often very small and don't hurt. unles your coach really wants you to get grips or you are getting horrible rips, you don't have to get grips! hope that this helps!
-rasberry