Max Prop 3 Blade Pitch

Hawaii Sailor

E27, Kaneohe, Hawaii
My uncle helped take my Max Prop 3 blade off my 27 Ericson so we could replace the cutlass. He forgot to index the pitch. We have been using some prop calculators, but I wondering if anyone has the same setup and could recommend a pitch. The engine is a Yanmar 2GM20F, 18HP, 3600 Max RPM, Gear Ratio 2.62. Thanks ~IMG_2827 (1).jpg
 
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