I really liked what you had to say here and it made a lot of sense from a scientific standpoint. However, it caused me to wonder how other people climb while standing. While there is an obvious difference between standing and spinning, I don't think you need to give up your near constant acceleration just because you stand. It takes good form to have a good pedal stoke while standing just as it does while sitting. You need to work the upstroke every bit as much as the down stroke. For me standing is not about slacking and letting my weight do the work, it's about using that for half the stroke and ripping up and through on the back side of the stroke. I struggle at times just to keep my rear wheel on the ground because I'm pulling up so hard on a hill climb. What does your stroke look like when your standing?