Okay...........finally got my radio and ordered a Behringer XM8500 mic. Now I need a foot switch. I'm not so much asking "which one" but talk to me about pros and cons and what to look for in a switch. My shack is carpeted, so I'd imagine I'd need to put the switch on a piece wood or some solid surface. Do bargain switches work as well as expensive ones? Push down in the front or down in the back? Opinions?