You should be able to start out with a breakpoint somewhere around 5-8 depending on lane surface. If the field (other players) breaks them down close to the same way, another zone could develop. This other zone would not be there until around game 5,6,7,8 and it is dependant on surface also. This other zone would be about an arrow left and would be feeding the ball to the right deeper down the lane.
If it is wood, you may get pushed into the "second" zone after a game or two especially if everyone is beating the gutter up.
Ball choices should be on the smoother, arcing side. If you get on a slick surface like pro anvilane, particle might be really good. This might be a good place to take your S&D with a smooth surface on it like 4000 or 2000 depending on your ball speed. When you get forced further left, still think smooth as you do not want the ball snapping up going away from the pocket. If they are really starting to move, your weaker Speed Demon might just fit the bill.
Good luck and let us know how this played out as the graph looks challenging especially with the flatter ratios side to side.
--------------------
"Why don't you call me sometime.....when you have no class" ~~Rodney Dangerfield to his college professor in Back to School ~~1986
Mike Craig-Columbus, OH