Hi, I have a 16 ft lund ssv16 ( I think) alum bench seat style boat. Planning on new motor for it. So, what is a good size for trolling verses moving it around decent with 3 adults in it. I hear a 40 wont troll down ( boat rated for 40 max). So any feed back with your experiances would be helpfull. Only wanna buy it once HAHA!! Thanks