Hey guys.. I posted up a few days ago about my 15 HP Gamefisher not hitting speeds much above 10 MPH. Would a hydrofoil put much of a damper on the top end speed (cut 4 to 5 MPH off of top end)? Let me know your thoughts. I'm looking into buying a new prop and if I can avoid it by taking off the hydrofoil, I most certaily will. Just looking to see if this will slow me down that much.