moving in and out of heavy traffic at high speeds requires a lot of agility, especially in terms of throwing your weight laterally with your hips, and the amount of deceleration you require is always gonna be different and easier to calculate intuitively with your legs (and a little front brake maybe?) than just brake levers alone. at least it is for me. come ride down broadway at 5pm every day of the week with me. that'll do the agility argument more justice than listening to me.

oh, wait! wrong thread. i thought this was fixed/ss, i didn't realize i wound up in mtb/cyclo.

*don't take any of my experiences to heart, i only post here when i'm drunk anyway. : )