Hey, everyone. New here... seems cool. I recently bought a Grestch acoustic after several years of playing out with solid bodies and a Mesa Boogie rig. We do rock-style music and I just want to pick it up now and then during a gig for something different. A couple things: I have trouble with feedback and hum in excessive amounts. Mics seem to be placed okay... not sure what it's all about. I also find that the volume and tone differs greatly from the top to the bottom strings. My lowest notes seems to just rumble and roar with diminished volume while it increases as you move up the strings or frets - without adjusting anything. I can understand the principles here, but again... it seems excessive. Anybody else with these issues that can offer some direction? Thanks.