I just tried mixing in mono split, your a fucking champ Jaz. I have been struggling the last week or so, as soon as switched to that I fucking found my groove again. +rep bra how do you set that up?? on my djm800 if i select mono on the headfone selector, i get both tracks in 1 ear i think? am i doing it wrong? lol make sure you have the master cue on (the furthest cue button to the right), that will be your left ear (if i remember correctly), then make sure u have the headphones channel set to mono split, then what ever channel your cueing have the yellow cue light on (this will be your right ear)... then adjust the mixing/cue/master knob to what feels right, half way is usually perfect let me know how u go