Um, why is Eno's click off by 6 milliseconds to begin with?? Creating a click is a no-brainer: if using a computer or any decent sequencer you can dial it in exactly on the beat at 0 milliseconds. If Eno himself punched in the pattern and failed to check and if necessary quantize it, that makes sense, but otherwise he just got sloppy there.
I'm thinking alot of good drummers would pick up on the 6 milliseconds over the course of a song, especially if there's a loop running thru it, eventually those 6 milliseconds per beat add up to a fairly noticeable issue later if there's a repetitive fixed-length loop involved. Of course other musicians might not pick up on it, but even Edge's delay would be affected but he likely just adjusted to it.
The 2 milliseconds tho?? That's just ridonkulous!!