Originally Posted by Pocket-full-of-gold
This is one point that has seemed to come up on a few occasions. I think it pretty much helps explain the need for footboard angle adjustment. I'm still yet to see anyone explain why the red cam is better on a hat stand than the blue...or why a rolling glide or pulley system should render the old style direct pull obsolete.
The cam system allows you to have a different distance that your foot moves relative to the distance the top cymbal moves. For example, you could move your pedal 2 inches down with your foot and have the cymbal only move 1". That would be useful in replicating the bass drum feel with your foot, but maintaining a smaller gap in the cymbals up top.