I have noticed this too... for a long time I was just pushing down, but as soon as I started to focus more on my legs and hips being part of the action my legs and feet were doing... wow! what a difference.

I find my rhythm much smoother and it is easier to focus on a steady climb, rather than trying to 'force' my way up the hill.

The more I ride, the more I feel / notice that each part of body is linked to other bits... I love the way I feel my body beginning to respond... and that I can recognise this increasing responsiveness...