They gave me excellent advice on a different prop for my rig, a 21" SST which got me 450 RPM, a 2-3 MPH (GPS) increase and eliminated the chine walk (all compared to the 23" Viper). Now they tell me there are some changes that can be made to further improve performance. Roughly $300 IIRC. Has anyone had DAH work on their prop? Good work? Bad?
All input appreciated, John C