Brian,
I have a Machine drilled 4-1/2 x 4-1/2, pin over bridge. Ball gets good length and a hard arc on the back. I had the Power Machine, drilled 5 x 3. I sold the PM, but still have the Machine and absolutely love it. I use it on a second shift shot and it works great. To get separation from your Equation^2, I would put the pin 4-1/2 to 5" from PAP with the MB 4-1/2" to 5" from PAP.
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Hook 'em Horns!
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