i came up with this -
stutter
which is using a cc pedal to feed a delay with the time modulated by a random square wave
on the clip, there is also a "drop" at the end of the stutter. this would be possible if the axe fx delay times could be smoothly modulated (like a tape delay), but the tricky part would be to have it all happen that quickly and in sync. i suppose you could simulate the drop with a "whammy", but really you need everything to be controlled by the axe, so it has machine-like precision and you're not tap dancing on switches.
doing a simple 16th or 32nd stutter is easy - just load up a square wave (or ramp) tremolo in line, with 100% mix, but leave depth at zero. attach a cc pedal or button to depth and just hit it when you want it
sim