If you never un-clip your strong side until you get to your destination, stop with one foot down at traffic controls you are instantly able to launch in the same well practiced routine when the light changes.

Not being caught flat footed in traffic (or when the gun goes off at a mass start) keeps traffic off your back with a strong in-charge start and a predictable solid stop/dis-mount.

If you look in the Masters Racing sub-forum [MENTION=71001]Hermes[/MENTION] describes how practicing his start was key to winnng his District/Age class in 500M track event. A bad start on the track in a sure loss, a bad start in road traffic can be much more consequential.