2005 3.0L Volva/Penta 17.5 ft Glastron:<br /><br />Put the boat in the water for the first time, with the new prop. My old (original) prop was a 14 1/4 X 21 Volvo, I installed a 14 X 21 SS MW Appollo XHS. One thing I noticed different from the Aluminum prop was that the new SS prop seemed to cavitate earlier when trimming up once planned out. My aluminum prop would run 1/2 way on the trim guage with no problem, this new SS prop wants to cavitate between the 1/4 & 1/2 mark on the guage. I'm not sure if I'm trimming too soon, or there is that much difference in these two props. Can you cause cavitation trimming up too soon, when planing out ???? SS prop have more bite ????<br /><br />Any advice on this issue would be appreciated.<br /><br />Thanks