your m8 is prob right ,BUT if you dont grip the tank with your knees so that your rising with the bike i guarantee sore privates will happen even on a little bit of 'air '(i.e not really airborne just no load on suspension at all)will b sore if u dont grip the tank as nutty says .tell you what ,do it and dont grip the tank and we'll see whos right ,your m8 or nutty(if u can still talk )