What kind of prop are you running if you have one of these. What is the diameter and pitch of the prop. Have you tried different sizes? Also, what type of boat do you have it on?
I have an 2004 with a 13.25×17 prop I have it on a 16 ft lund. No I have not tryed diffent prop since I bought it. I had the place I bought it from set the prop pitch to the proper RPMs at full throttle.(warrentee satisfation too) I have great hole shot no matter how much weight I put in the boat and am very happy. I can troll at about 2 mph (GPS). KNOCK ON WOOD!