I'm considering picking up a rackmount compressor (maybe a Behringer MDX1400 or a Nady CL5000), but am a wee bit confused. Ive never used compression before. I gather from reading past posts a compressor belongs in the beginning of the signal chain, but all of the rack mount models I've seen pictures of have backside input only. Huh? I'm trying to avoid a pedal, since I'm starting to go wireless. My rack is currently a SansAmp RBI >> Carvin DCM1000, with a Korg DTR2 in receive only mode from the RBI (Im not running my signal through it). I'm trying to even out my signal - I'm rather anal, and the occasional blip in my fingerstyle playing really bothers me. Comments from rackmount compression users?