A different tip that I am working is to give in all customers of my new Project Audio Styles, the Audio Drums as :

1) Stereo mix master wav files (Audio Drums) with mastering of Sterling or from me.

2) Stereo wav files (Audio Drums-mixed with fx,compression, EQ etc) with all elements of Drums (Kick, Snare, Tom, Hi hat , Overheads, Rom to make your mix.
Also I can to send all steams in Dry mode without mix to make your mix with your fx, compression etc.

3) OMF Files to use ready all project in your Host.

The steams it's a modern type method to make mastering in a Mastering Studio.
We can to send in mastering studio (with extra cost) our own steams (group stereo wav files like: Drums, Bass, Guitars, Vocals etc) our own song in order the mastering engeneer make a more good Balance in Song.
This I can to send free in all customers of my new Audio Styles.
What do you think about this??