[camus]

For all practical purposes, try measuring the distance between 0 to -10 on your desk, and then the distance between -30 and -40. Of course, if you're just using the board as a glorified summing amp then keeping the faders at unity will offer you zero benefit. If you're riding a vocal, a line of ADR or a stem of foley, then the practical fader resolution becomes of greater importance. I can't for the life of me imagine riding 10dB of dynamic range in less than half an inch of fader travel, but hey...