Brian, Here is another mod you should do while you are at it. Some of the components on the bottom of the board rub on the case and I actually had the fan plug break completely off on one of my MMMs. Pocketing a little on the material out on the case bottom prevents the rubbing and hopefully will keep the MMM running longer. I cant imagine constant stresses on those components can be good for them or the boeard itself. Heres a pic of what I did to fix it.
Another thing to look at is the spot in the case where the rx and switch wires come out. I had one start to rub the wire bare already. Just shave a little off of the case to to keep it from binding and rubbibg and I wrapped the wires at the spot where they contact the case with a little electrical tape to hep protect them. No pics on this one, but easy to understand I think.