I am looking at buying a 2014 sun deck sport 188 and would like some help figuring out the engine type that would work out best for me. The outboard options are a Yamaha 115 or 150. The i/o is a 225 merc. Just came back from a boat show and they had both i/o and outboard there and the set up is a lot different for both boats. I will be using it on a lake for the usual stuff and towing watersports like skiing and wake boarding. Any help would be appreciated!