I've got a J12 Carolina skiff with a 15 hp engine on it. It cannot get out of it's own way. I thought that perhaps my engine was to blame, so I borrowed a buddy's 15 hp engine, and it still cannot get out of it's own way. The sticker rates it for a 15hp max for tiller operation, and 20 hp max for remote. I was leaning towards a nice 25 that I have access to. Are those sticker recommendations a mere manufacturer rec or are they the maximum allowed by law. Forget about the insurance deal. I know all about it. I would just like to know if it's illegal to exceed those recommendations. Thanks