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 beyond the WOT. I went back to dealer, they let me try a 21p, and it dropped the rpm to 6000rpms, The difference in hole shot and top end speed, was negligible, now I need to go back and see if they have a 23 pitch to try, this should bring me closer to the recommended WOT. Now for the question, the paperwork with the boat noted the boat should be matched with the correct prop from the dealer so the WOT can be achieved, as I see it the prop that came with the boat was not the correct prop, do I have valid argument where I should insist that the dealer provide me with a different prop. I certainly do not want to run a prop that goes way beyond the WOT, whereas it would void the warranty. The more I speak with the dealer, the more I get a feeling that they do not want to make this right. Any productive thoughts would be appreciated