I don’t perform live with mine, but do find it nice to be able to either shift or organise at different rates, or hold back on the CV control if I find something nice to explore in a splice. I also like to keep splices short (often single notes or hits) for that microsound scanning effect on slide - that with slow delays for layering is a nice way to build up something richer.
Sometimes I use gates from Muxslicer to control shift, sometimes lfos with attenuation / offset into organise, sometimes more chaotic patterns from self-patched rampage.
Thinking about it, something like Joranalogue Switch 4 would be great for mixing control voltage sources for Morphagene…