(Terminology: AFAIK, "zipping" refers to a kind of one-directional raking, usually done with a hook. The lockpick is raised against all key pins, tip in the back of the keyway, and as the pick is pulled out rapidly, light tension on the BOK tensioner is increased and the plug turns.)
It makes sense that back-to-front binding order would help this attack, since pin stacks are being released from back-to-front as well. Has anyone noticed if zipping is less effective when there's a different binding order?
I don't know how long it takes a pin stack to spring back, or how fast people get at pulling out the pick. Can zipping still work well for locks with front-to-back binding orders and good tolerances?