venturi bolts have a multi holed face which supposedly spreads the gas better around the ball, meaning that one particular spot doesnt get hit with the gas, therefore the ball doesnt come out the barrell with un-natural spin which would cause it to dive off in some crazy direction.
if you really want the skinny on bolt pressures, faces and spin then speak to robinator, the guy did a whole physics project on that.
anyway, what is joe bob doin in tha tech-room? shouldnt you be raisin havoc in speak your brains or summit?
Hp