Hi,
I mix a lot of stuff for a certain library in L.A. What I do for them is when I mix I put my mastering chain (in PT) on the master buss and output my mix as hot as it will go without making the sonics suffer. There's never a mastering stage with this client so the mix is mastered as part of the mix process. I usually have a ref track that i'm using stylistically so I base my "mastering" on the ref and try to match vibe and levels to that if possible. Don't you just love trying to match up a mix recorded for an album with a big budget and mastered by someone great with tracks recorded at someone's home studio in 2-4 hours!

