The setup; I have a new 20 ft glastron bowrider, 4.3EFI MPI Mercrusier with the Alpha 1 drive, recommended WOT is 4400-4800 rpm. The boat came propped with a 14.5x19 pitch alum. We typically will only have 3-4 people at any given outing. The 19pitch aluminum prop easily hits 6800 rpms, well...