Well I'm short (5"9') and 150 is a good wt for me. The 65 senate says it's good up to 160# and if I get there I better hit the gym or decrease my high life consumption- though I will say that my off season workout put on about 7# and dropped my body fat%. The 67 is rated for 150-?175 so there is some overlap. I guess what I really need to do is to demo them both but doing that in Indiana won't be easy- the ski shop in Indy didn't even have a 65 when I called.