Stroker piston wrist pin height clarification

[cherrod8]

Just some clarification on the stroker piston wrist pin height:

Using the G4CS (235mm deck height) with the following:

Eagle 94mm Crank + 156mm rods = 1.65 rod ratio
With the 156mm rods I would need a stroker piston that has the wrist pins moved -3mm, right?

Or

Eagle 94mm Crank + 159mm rod = 1.69 rod ratio
With the 159mm rods I would need a stroker piston with the wrist pin moved -6mm, right?

Please let me know if I have it right or wrong. I had the answer written down before...somewhere, but I can't find it now. Thanks in advance.