I am buying an Alumacraft Competitor 165 Sport. It comes with a 50hp merc, but I have the option to upgrade to an Evinrude 50hp E-tec or 60hp Merc Bigfoot. The dealer has talked up the bigfoot pretty good, but a friend of mine keeps telling me the bigfoot is NOT meant for that kind of boat. But I have seen a few youtube vids showing how bigfoot has made its way into the 16-18ft aluminum boats. That being said I am a first time boat buyer, and don't want to get something not meant for the boat. Looking for some input from ya'll on what I should choose for the boat. I can choose a Merc 50hp, Merc 60hp Bigfoot, Evinrude 50hp e-tec, Yamaha too. And my main fishing will be in Detroit River, Lake Erie, inland Michigan lakes