Yeah, obviously, their "matchedness" is non-existant!
The two never matched up outta the box. It never bothered me, tho, as I'm not one of those guys who must work with matched pairs. I just always turned the gain up on one a bit more.
But, yeah, 66dB of gain, and I still had PLENTY of headroom. It was a quiet guitar part, but it's not like it was soft finger-picking or anything. Regular-strength picking with the mic 2 feet above his head. Martin D-15, gauge 13 bronze strings...
Oh well, I didn't mind; The track turned out great! I've got a hankerin' to try the 603s out on more stuff now; These new caps have definately renewed my interest in them.