Made 2 pulls today WOT 5600rpm, Solas 19P-4Blade HR4 Prop, 2:1 Gear ratio 52mph. Seems this is fast as it will go with the 4 blade without me raising the engine further out of the water but with Blueprinting the Hull the prop slip calculations are down to 8.38. I'm sure the 3 Blade 23P or the Ballistic 3 Blade 23P it will go faster but I'm settled in with how the boat handles, pops out of the water, cruises on plane at 35-40mph, and carries a load (another angler). I strongly recommend Blueprinting the Hull in a full restoration. The actual prop pitch measures 21 inches.