Hey guys - I am a hobby home musician. I have a little experience with the mics I have used but I am scaling back gear and am looking for input. I record my guitar cabinet (A low wattage Carr Mercury) at light OD levels. I have been using a SM57 on the grill and a Neumann TLM103 a bit back. I am selling that TLM103 and some other gear and downsizing to an Apogee Duet and a couple mics. I was wondering how the SM57 & MD421 pair compares in rough general terms to what I have been doing. I am thinking of trying an MD421 or possibly just buying a cheaper used condenser like the AT4047. I only have experience with the SM57+condenser pair and I am wondering what the main differences are in goind to two dynamics like the SM57 & MD421 in terms of what is lost/gained/changed in the capture?