He stated mixing "and stuff" so I dont have no clue what "stuff" is (sorry not hip to the new audio engineering terms these days excuse my ignorance) But like you said either way mixing, or mastering, or and "stuff" none of the three seem to be applied at all to the 2nd track they sound the EXACT same. I mean look at the wav form of both files they are identical, I mean my wav forms in my mix are WAYYY different then my waves forms when I master, jus me tho. But maybe my monitors aren't calibrated right I could be wrong. Try posting the dry recording no effects FIRST, THEN post the mix, THEN the mastered track Scott so we can listen to all 3 aspects of your engineering and its progression it would be more clear to us.