My 2006 232 Gulfstream ,with a painted bottom,has 13 3/4 x17 Black painted SS props on twin F150 Yamahas.
I could only get 5400 RPM @ WOT
This was with a light load 1/8 fuel ,No water,and three people onboard.
I have since moved this boat from Florida (salt water) to Canada (fresh water)...