I recently played a song circle, where I improvised a freeze setting from the Carnegie Hall preset. Then I played part I from “Shine On You Crazy Diamond.” There were many bits of exploded skull around the room afterwards.
I narrowed the pedal sweep on the decay parameter: MIN around 2 seconds, MAX just at FREEZE, giving me a nice broad pedal travel for INF. The CH preset worked surprisingly well as the template.
I shared my experience over at the Facebook group, and directly a curious player towards your examples here.