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Thank you all for your responses and obvious expertise:

My boat is the BW 19' "Montauk" hull. Actually the hull is the Whaler commercial product equivalent-- called the Guardian, which I put together from scratch, bare hull. I kept the entire project bare bones uncluttered and light in weight as possible. Engine I installed is a 2009 Model # E115DPXSE.

You can see the boat in your Project Albums.

So, I'm looking at this BRP 13x19 SST prop P/N 0763952 in its box, which was assuredly sold to me to replace my bent up old Aluminum 14.5x19. It's just an "SST" model. Not a Viper or a Rebel model.

I don't ski and don't need a hole shot. If I'm paying out to upgrade to stainless, like one of your experts strongly advise, would I be better off with top end speed and/or improved fuel economy with a different prop model?

Thank you, SK.