The cheatah is normally out side of five since its only 35 foot. I tend to use strong balls drilled weak, to control the back ends. I have used a Dimension drilled 5 x 4 and have had sucess, also have used a spit fire. The shark plays inside dont get the ball out side of 13 or its not going to make it back. I tend to use balls that rev up sooner, Dimension's with stronger drills 4.5 " or less, Until shot breaks down then I have to move in or change to a ball thats somewhat cleaner through the fronts.
** THis all depends on the surface you are bowling on. You Play surface more then you play the pattern..