@QBhoy Stern Heavy boat here as well, Larson Hampton 220 small buddy, 5.7 Mercruiser Alpha 1 - gets to plane around 3100 but till them it's bow up. Your advise above seems like a match for me. I had a 15 x 17 three blade on last season, switched it out to a 14.5 x 17 four blade a couple weeks...