1997 Larson LXI 226 with Volvo Penta 5.7l. After several discussions with Deep Blue Yachts sales staff I selected the Solas Titan in 4 blade, 2 pitches down from the factory 3 blade aluminum (21p to 19p same diameter). The maneuverability and hole shot increased greatly, I can now get on plane faster even with a skier or heavy tube behind the boat. The amount of slip during turns under power has reduced and I can run on plane at a much lower speed. Originally I was looking at engine performance parts, I don't need them now after the prop change. They also had the best price by a substantial margin and shipped fast..