"...So how should i be presenting my tracks to the dude doing the mastering?
Should i turn up with my tracks as good sounding as i can get it to my ears on dat or cd? ..."


DAT is generally better but lost of ppl are working more with Cd now, so it is just fine.. ... Try doing very lite tweaks 2 yer master (so u don't fuc* up, also this way u keep learning) and always keep a raw (unmastered version). U can even b a sneaky little bast*rd and give in the mastered one hear the comments and then so.. ohhh my god what a mistake that was just a test cd, my bad ;) .. here's the "real" final version (raw)... :)

Z