I've read before about ideal height : weight ratios, especially for climbing. I'm dubious since power isn't taken into account, but I'm wondering if there is a height : weight ratio that is more prevalent amongst healthy cyclists. I'm 6'0 and in the low 160s, but I'm climbing and feeling slower and slower on the bike. A few years ago, I weighed in the 130s and was alot faster (and climbed alot easier). Is there a rule of thumb for finding a good middle ground?