I am a first time boat owner, I bought a 1995 Regal Valanti 182se. 3.0 mercruiser Alpha 1. 14.5 19" prop. last fall. We have had the boat out several times with just me and the wife or me the wife and 1 of our kids. we had the boat out once with 4 adults and the boat has done great everytime. this past weekend we asked a couple freinds out on the lake with us for the Holiday. we had 6 adults, 3 large coolers, plus food and towels and stuff and the boat would not get out of its own way. it struggled to do 15 MPH. and I could not get over 3000 RPMs. the engine runs great. I am very mechanical, I have restored the boat paint and I replaced the prop. with one just like was on it before. I can understand the boat being slower with that many people in it, but i did not expect it to be as bad as it was. is it just the prop? has anyone else had this happen? thanks