Here's my current rig. I've cobbled together a "shock mount" rack for the Mc250 which consists of a couple pieces of hardwood flooring and some foam padding that I've wrapped with black duct tape. I have some bolts going down though the bottom of the Mc housing screwed to the wood and piercing into the foam pad to keep it secure. The pad is also velcro'd to the bottom of the rack...it really works out quite well.
1x12 with E120 and 2x12 with K120's. The PRS has Waldo's buffer, OBEL, and DAllen Voodoo pups, but I'm eagerly awaiting an AO Wolf that's currently being built.
Just got the MuIII calibrated by LSound...sounds nice.
You'll notice in Wisconsin we use hockey pucks to tilt our speaker cabinets back