Re: Bennington 22 sl
The kind of fun that kids won't get bored with (tubes, towables, knee boards, ski's) requires an engine size at, or near, the peak HP allowed on your size boat. Or as EGlideRider says, it will be a very boring experience. You will see the boredom set in quickly with the youngsters with a mid-level HP engine. For 22', a 150HP sounds like the ticket, especially considering you will likely be hauling family and/or guests while playing on the water.