2 C84's, different Revisions.

[PJD3]

Hi Tim. As it turns out, the C84 I purchased a few years ago is Rev 1.3 (modified 11/11/05). New one I just recieved is Rev 1.9.1.
I can see that parts of the schematic are different. So, my main concern is, will I be able to make acceptable stereo recordings, or, will the differences in the C84 revisions be enough to compromise the accuracy/matching of left and right? I'd be interested in your opinion so I can make a call. I'm only using these with short cable runs and not doing anything highly critical.

Thank you Tim,
Phil Donovan