I'm aiming for -20dB RMS, around -6dBFS peaks. My drums bus peaks between -9 and -6dBF. My master chain for "home mastering" is: HP filter around 30hz, SSL-like bus comp (10-20ms att, Auto release, 4:1 ratio, 1-2dB GR), MB comp for getting lows in control, 2dB GR clipper, 3-4dB GR limiter, 1-2...