I live in PA and have a StarCraft 21' CR with a 2015 90 hp Evinrude Etec. I had, just a few weeks ago, Jason Minor come and install a Hydrofin System on my boat. I got to test drive it this weekend. Prior to installation I got 22-23 mph and only up to 5000 RPMs with a regular 15 pitch Evinrude...