That's what I did, I'd owned the AMT for quite some time before I started getting tired of the fixed cable. This was after sending it back to AMT for a replacement cable. One of the problems that I've run into is that I have to be hyper-careful about packing the mic back into the case, which is prone to pinching the cable in the edges, or more likely, in the handle cutout, where you can't see it. Marty acknowledged that the cases are too small, but that he'd ordered a bunch of them and wasn't planning on replacing them until he used them up. Since the cable is hard wired to the mic, failures are a real PITA.
It's not much of an issue now, as I either play unamped or in bigger venues with the pickup. I may have someone modify it to make the cable removeable at some point, but it's not really front burner right now.