I'm wondering if anyone out there has installed a Skeggard skeg protector on their engines. I recently put one on my Merc 150 Optimax and now my top end has dropped almost 5mph! I was getting 65mph on my Nitro bass boat before the installation and now it tops off at 60mph. No other changes have been made. Anyone have a similar experience or any ideas? I can't believe that that little perpendicular wing on the bottom of that thing would cause that much drag.