Just goes to show u
I have a Merc 5hp on a 9' inflatable. It will plane with one person, the whole set up will carry 4 adults. I happen to like 2 stroke, no oil to change, lighter, KISS. It doesen't use so much fuel that mixing the fuel is a problem. I keep a small 1 gal container mixed on the boat(outside)and refill as necessary. It has an second tank which I never use. The built in tank is more than adequate for what we do. 2 strokes are designed to be pushed and run hard. I happen to be a 2 stroke fan, sorry.