To one of the best bowlers on this site, I shouldn't try but I will!
em, What I've seen off the pro tour for these pin out balls is often a pin near the ring finger(a little above or out) and the cg down about 1/2 inch to an inch and a weighthole down below the grip midline(1/2 inch to 1 inch) and out slightly in relation to the pin and a weighthole out on the VAL on a line from grip center thru cg).
The pros I've seen use this claim it still gives good control of the midlane and a strong backend.
Another real good bowler I've seen lately had a slightly lower topweight ball that looked great with no weighthole and pin side of ring finger and up and cg again down below grip midline but back towards grip center.
Ball had some thumb and some top weight. Early start and still big backend!!
In other words guys are introducing a little thumb weight and earlier rev on this big pin out balls and getting big backend and good early control of the midlane. Versus just big backend with little midlane if cg is on grip midline.
Hope this works.
REgards,
Luckylefty
PS I just drilled a reaction roll stacked with cg 1/2 inch down from grip midline. Nice, see my review.