hey eric,i wanted to know if i used 2 6 cell stick packs in my mechanical bull cock if it will leave bumps on the top of my skull?last time i tried to use one i was in the bath tub and was trying to give myself a warm soapie and wound up dead shorting it before i got to use it.any help would be appreciated.im tired of just looking at it.i want to ride it like the brokeback bitch that i am!!