I'm still not convinced that it would slow you faster to lock the rear wheel, as well as the loss of control that it entails.
@NickCJ started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I'm still not convinced that it would slow you faster to lock the rear wheel, as well as the loss of control that it entails.