Mobile Fidelity Sound labs Question

Just a note: I was recently at a friend's house listening to his MoFi version of Guns N' Roses' Appetite for Destruction. It sounded awful: no bass and screetchy. I happened to have my MoFi copy in my car (we were going to see their show) and brought it in and played it. Night and day difference. My copy sounded terrific. We repeated the comparison several times and it was easy to tell which disc we were listening to. I had never had that happen with MoFi disks before, so now am wondering how often it occurs. And yes, we looked at the manufacturing stamp marks and both discs were from the same plant. As far as packaging, etc. they were identical. Anyone else had this happen?

Since I love the 3 bands you mentioned, let me give you my 2 cents worth of observations. For Rush, the Mo-Fi's are much better than the remasters from a few years ago (circa '97 - 20 bit remasters). Pink Floyd, it depends on which discs. Said another way, the Mo-Fi's of DSOM and Meddle along with the Sony mastersound of Wish You Were Here are far superior to the newer remasters (I have not heard the ones in the box sets however) BUT the remastered (and currently available - 20bit?) "The Wall", betters the Mo-Fi "The Wall". As far as The Who, I have been very pleased with the most recent remaster of "Who's Next" (24-bit) and find it is "as good" and on some tracks better than the Mo-Fi, for 1/5 the price. I have not made the same comparison with "Tommy" but I don't know there is a current remaster of that album available. In conclusion, I think the Mo-Fi's were/are better than most of the remastered discs put out through about 1998.

big difference on the mofi vinyl and cd's i've heard.

steely dan "aja" and pink floyd "dsom" vinyl versions sound incredible. just picked up a sealed copy of sonic youth "goo" cd for $10 on ebay. it too sounds great.
i heard the r.e.m. murmur sounds drastically different. apparently since it was targetted for radio play there is no low end at all on the original, very trebly. apparently the mofi version is drastically superior.
definitely worth checking out. the pink floyd can be found for $20-25 usually.