anyone have any experience with these. i use a wireless shure WH30-TQG headset($130) when we rehearse our songs live cause i constantly have to be different placed in the room to set things up as we go and have to access my guitar pedal while im signing. the problem, of course is, it sounds thin and harsh compared to a bigger diaphram mic like a 58 or such and E.Q. only helps so much. i've seen some of these mics that are $700+ and i don't mind spending that kind of money but i can't try any of them out here,nobody has stock.you have to order one. are they really much better than the $130 ones or just marginally better..is it worth it? im using a shure T4N diversity reciever. would i need a better reciever as well? is that a big part of it? i guess what im asking is..can a small diaphram mic like that sound good at any price. thanks for reading..