I just started reading it. The first section was all bout the bike and different kinds of mountain bikes. I found it really informative and interesting as I really know nothing about bikes and all the components.

The section I'm reading now is about position on the bike. It talks alot about the neutral positioning: light hands, heavy feet. The "heavy feet" feeling is completely foreign to me. I do okay with it at certain points, but in my normal riding position most of my weight is on the saddle and I pull up with my legs for the pedal stroke. I feel more pressure from the top of the shoe on my foot than on the pedal.

When I first started riding with clipless pedals, DH emphasized that the purpose of clipping is to utilize the full circular motion, pulling up and pushing down. I guess I focused too much on the up-swing.