I’m a bit confused, in that when I freeze in the Blackhole plugin, it doesn’t zero out mod depth? It freezes the current mod depth and feedback settings, but their “knob” positions don’t change.

I’m not sure what you mean by/how to mute the input. Playing over the frozen reverb is kinda the point, though. In that Adrian Utley video linked above, he plays over the frozen reverb to wonderful, lush effect. The frozen reverb tail overloading is pretty much exactly what it sounds like it’s doing when I encounter this problem, though.

I think, as noted above, technique may have a bit to do with getting Space to do what I’m trying to accomplish, but it seems there’s more to it than that.

Blackhole is a good example though, comparing the plugin to Space- the HotSwitch freeze out of the box is definitely not behaving the same way as clicking freeze in the plugin, which is what I was expecting as I’ve been using the plugin for ages.