Hey Steve:
Thought we could compare.
Here's one of my racks. Some similarities to yours.
Funny you have the Intellifex. As you can see, I have a Replifex. I love both of those units. I decided to stick with the Replifex though, as I dig the vintage pedal-style tones it puts out for effects like flange, phase, chorus, etc. Verbs aren't great but I find them perfectly workable when you dial down the high end on them. Another great feature of the unit! Probably would be nice to have an Intellifex as well, to use solely for delay, reverb and hi-fi chorusing.
I sold the second M4 recently and it will be shipping out next week. Thinking of picking up a Soldano X88 to slide in its place.
Tell me more about the Cantrell mod!
Only thing that sucks about a big rack is that it sits at the rehearsal hall most of the time. It's not exactly easy to move around! I had to pick up a Gorilla for home noodling!