If you've had good luck placing the pin above the bridge on other balls, it should approximate what you need. Keep in mind that such placement implies the ball goes thru the skid/hook/roll cycle more quickly at the transition point than a lower pin placement -> more flippy.
I've had better luck placing the pin equally far away, but under the bridge. SO instead of placing it above the center of the bridge, I'd place it directly below middle finger. CG around grip center, depending on pin-CG distance. This gets equal length but is less flippy at the breakpoint.
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Just like hand grenades and horse shoes, in bowling you only have to get close ...
