I've got what basically amounts to a stereo guitar amp (two little 10w tube heads hooked up to two independently wired speakers, which are mounted together in a 2x10 cab). I haven't played live yet with this particular project, so I'm looking for some opinions with regard to mics on this kind of setup. With the places we're probably going to be playing, two mics on the guitar amp every time isn't a realistic expectation, and nor is stereo mains in house for that matter. Has anyone tried putting a single mic on a setup like this? We generally have the mic right up in one of the speakers, and putting it between them seems like it might be out of projection, or at least, it would have to be a bit farther back than I am used to. I just wonder if that will significantly muddy the sound. I also wonder if this will create any serious phase issues when using stereo effects. Losing the stereo sound over the PA is not a huge deal to me, but crappy weak overall guitar sound kinda is. Thoughts? Thanks for any input.