[san rensho]

Heel and toe also works for steep hill launches, not just for rev matching downshifting.

When you are stuck in traffic on a steep hill, use the brake to keep you from rolling back, don't slip the clutch! When you want to move forward, keep the toe of your right foot on the brake, use the heel of your foot to raise the rpms and at the same time start letting the clutch out slowly. The rpms wiil drop and at that point the clutch is grabbing so take your toe off the brake and just do a normal launch. You won't slide back at all if you get it right.