Reminds me of a Story
An unnamed pro rider was on the same team as Tinker Juarez. he was not doing good on climbs, so Tinker suggested that the do a rider together, and he was show him how to train for hills.
The day for the ride came. Tinker had gotten to the trail head first, He threw the other rider a backpack and told him to put it on.
The other rider was surprised at the weight of the Backpack. He asked Tinker what was in it.
Tinker replied "Rocks"
On more serious, I used to weigh 100 pound more than what I do know. I do climb a lot better, so maybe Mr. Juarez is on to something.....