I have a 1999 15 hp Yamaha on my sons 11' Whaler or a 1997 40hp Rude' that I would like to trade 1 or both for a 20-25 hp shortshaft for my kids 11' Whaler. The boys want more speed and power for the BFT fishing they want to do next summer (Joke). Need a little extra for tubing and stuff.