I've had one of these - falls into the category of 'talk yourself into hearing a difference' for me. Due to a generous mail order error, I have two identical copies of Genesis 'Seconds Out'. One of them I've kept untampered with, the other I subject to any tweak that comes up. In its time it has been green penned, deep frozen, Releesed, Reveeled, ZeroStat gunned, had a bit of (free!) mystical Peter Wossisname universe-bending rainbow foil stuck on it and even been blessed by the Pope (alright the last one is still on the To Do list). Much as I'd like to have found a magical improvement, I'm buggered if I could swear to any difference between the two.