Originally Posted by
chaadster
Anyway, I've been riding and climbing long enough to know that sliding backward on the saddle does not make more power for me, but that may be due to setup issues like saddle height, saddle position, crank length, etc.
I don't think there's any superiority of a "slid back on the saddle" position, it's a "mix-up" position. Changing around which muscle groups are contributing to the effort allows a more balanced approach to climbing.