The guys of zeitgeistmastering.com mentioned some helpful tips on how to prepare your tracks for mastering in a youtube video. We are quickly summing them up: Here are 8 essential tips: 1. Make sure that there are no effects on your master channel when you bounce (export) In case you have essential effects on your master, send 2 versions: fx mix, giving your engineer an idea of the effect no fx mix, giving him the opportunity to apply his effects however: don't leave any limiter in place 2. Make sure the level of your track peaks somewhere between -6 and -3dB  3. If the...