A group leader on a ride I did last month told new cyclists to not stand while pedaling when attempting to get better at climbing, to do it when there is more experience under the belt and the climbing is more easy. He said sitting while climbing will build the leg muscles faster, thus increasing the power/body weight ratio. His advice to the new cyclists made sense to me, so I pass it on. I am not a new cyclist, but standing while pedaling isn't feasible for me, so I've really built up the leg muscles over the past few years to make up for the deficiency in not being able to do that pedaling technique. Sadly I am still working on lowering the body weight, so that I can continue to increase the power/body weight ratio.