Hi mate, i find it really nice from you. However i think that every producers want to masterise their track by them selfs. For example i don't like when someone put fingers in my music, if it is a dj or someone else, I like the way that my music is done and dont like this idea os someone remix my tunes etc. All my tune are free to download on my soundcoud so i hope that no one will "destroy" my art by remixing like shit etc. But it's not the point, if you offer free mastering is may be cool for few beginer producers. However i would like to know what are your technics for mastering, i use basic standard tools fom Ableton: Snare equaliser + Normaliser and limiter. Can you share whit us what tools do you use? What softwares? Maybe the quality of your tools will be better that what i and other producers use here. And it will be great if you can record yourself mastering a tune and post in on youtube so we can see hw good you are.
Cheers mate.