This might be educational (for me)...I recorded a little demo at home in my sauna using a 58 for vocal, an AKG c-1000s for instruments, and an old Yamaha four-track. I did a little remastering at a friends house using vegas software. I found mic placement on the guitars to be best either right at the top left hand side of the guitar (if you are right handed and looking down at the guitar) or at the bottom of the saddle, about an inch or two away. Whos got comparisons or other techniqes?