I'm wracked with indecision regarding hull choice. I have a '69 Glastron 15' open bow tri-hull with an 80hp Merc o/b. I have the opportunity to get a '78 Glastron 16' closed bow v-hull (I'll use the same motor).<br /> Some of the lakes we boat on can get really choppy (as can the bay), so I like the idea of the v-hull to help keep my fillings in my teeth, but I really love the smooth ride of the tri-hull on calm water (and the open bow). What other trade-offs am I missing? Speed? Efficiency? Is there an obvious choice? Thanks for any input.