totally feasible

SMMH is awesome for that sort of stuff

I would suggest something else for ONE reason: You have to keep your toe on the loop button. I’ve had amazing results with the 16 Second Digital Delay, which even has a built in click track and automatic loop cutoff. Also, you can add flange/vibrato to the loop after you record it, and the Continuous mode allows you to stack loops despite only hitting record the first time; it’s awesome. Think about the introduction of ‘Run Fay Run’ by Isaac Hayes and you’ve got an idea of how the Continuous mode behaves.

I guess if you’re playing open hats or on the ride it won’t make much of a difference (I control pedals with my left foot), but I tried the Haz on my kit and I was unsatisfied. However, the delay sounds great and the flange setting is really cool too. As for the reverse… wow. Basically, the Hazarai is great on drums for everything except looping.

Sustain pedal as in a compressor? It will totally mess with your cymbals, I love it and if you’re in a noise band you probably will too. Mild compression sounds really nice, but heavy compression sounds really weird – it makes your drums sustain longer, but as soon as they decay below the compressor’s threshold it’s a sudden drop. It’s worth checking out, but make sure that you buy it from somewhere with a return policy. Just in case. The Soul Preacher is rock solid and sounds really cool, but the MXR Dynacomp has this weird tremolo effect at maximum compression (not intended) that may suit a noise band nicely. A tracking sustainer such as the Boss DF-2 doesn’t know what to with the signal; cool effects can be had but it’s super unpredictable and requires way more concentration than it’s worth. I haven’t tried the freeze modes on the HOG yet, that may be interesting…

Have you ever looked into ring modulation?