I am interested in advice and experience with replacing my current prop with a Campbell Sailor. I have a 1983 Morgan 38, 384 with the Perkins 4-108 and Hurth 150 2:1 ratio. Currently the 16"dia. 11" pitch, three blade prop allows only 2600rpm. The Campbell folks are recommending a 16"dia with 9" or 8" pitch. They claim less slip in power and less drag while sailing. To increase the max. rpm they feel the 8" is necessary. Does anyone have experience with making this kind of change? Current postings do not directly address this situation. I want to increase the Max. rpm but I'm worried the 8" pitch will not provide enough power.