We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common !
Kevin, I swapped out a pair of Michigan Dyna jet 3 blade for a pair of Michigan DQX 4 blade wheels. The first thing I noticed was the change of harmonics. The boat ran so much quieter, and smoother at speed. I did not loose any top end, and I gained a little mid range efficiency. These nibral wheels are not cheep. I keep all my wheels tuned to the highest standard, so the most noticeble difference for me between a tuned 3 blade to a tuned 4 blade was the lower harmonic noise level with the 4 blade wheels. I am running 22 X 24 nibral 4 blade DQX tuned by Acutec propeller of North Hampton N. H. The boat is a 1977 30 Hunt Sportsman, set up for off shore fishing, with a pair of 300 Cummins diesels. I run the boat off shore 20 to 60 miles so the lower noise is worth the cost for me.