OK. I'm looking for opinions and advice on this subject I've noticed several times in the past. A buddy of mine is amongst other music things, an expert music mastering Engineer. He has some very big clients to his name from the late 90s early 2000s. he hit me up a few weeks ago to try and figure out why people would do this in the following situation, and I'm completely flabergasted by it (yes! finally used flabergasted in a sentence hehe) some of his VERY good friends produce and have produced their own music through others (he was reffering to three unknown groups). two of the artists he really likes the music of. the artists are not signed to anyone, even an indi, and are currently looking for management and labels and such while trying to release their first full length albums. he offered FREE mastering services, with absolutely no stipulation (told the artists if they didnt use his masters, he wouldnt be hurt at all in any way). he has established himself in VERY good repore musically with these groups, even did a live recording for one of the bands that turned out so good, the band released 1000 copies of it on there own and got incredibly good feedback and even had an indi label rerelease the live album overseas and it did well. heres the thing, none of the people (leaders of the group or band) took him up on the free mastering services. two of the groups have yet to release their albums, and the third went to a midrange mastering house and payed 700 dollars to get their album mastered. as a fellow studio owner and engineer, ive had similar situations happen to me as well. the question to you all is this. what would make someone not take a person up on such an offer, even if they dont end up using it in the end? i was always told that having as many sets of trusted ears on something as possible is always a good thing, and have gotten work several times because of outsourcing material for mastering to others on stuff i mixed. i consider myself a solid engineer (have a long way to go, some examples of stuff i've worked on in the past or present are Google, Google ) and i'm just dumbfounded as to why anyone would do this assuming that all parties involved have proven themselves as trustworthy individuals (stealing anothers music is the ONLY thing i can think of in these regards) why would anyone do this? other than why i mentioned? any help?