This was an interesting read.
When building a program I tend to default to mapping a Hot Knob (on an expression pedal) for things like this, on the basis that I think I need/will use the intermediate values. Usually though, I just end up slamming the pedal either heel or toe, which means I could be using a Hot Switch. I recently added a mapping for the end of a song where I want a delay loop to persist but fade out over several seconds, and so I set up HS3 to do this, freeing up the exp pedal for dialing in tone between other parts of the song. It works great!
One way to think of a HS is as a way to immediately apply a particular set of parameter values, you can use it both directions (ON and OFF — which goes back to the program values), or just one way.
