I have used them both and have identical drillings in them. I think that the Ogre is a little stronger in overall hook with similar backends. Both balls are drilled with the pin at about 4 1/2 and the cg stacked with a small weight hole at 4 inches from center grip. For me, the Greenie was a couple feet longer with a strong backend. The Ogre for me seems to start up a touch sooner with the same strong backend.
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Steven Vance
Former Pro Shop Operator
If anyone out there is worried about the scores being too high, try duckpin!!