I don't have any of these -- YET. I'm actually thinking of switching from my A/C/C's JUST so I can shoot these next year; they're the cat's meow, that's for sure... and from what I hear from fellow Pro Staffers... MUCH, MUCH better than Lumenocks.
I won't leave ACC's just to try a lighted nock but I am hoping someone will make one for the ACC's. I know Greg, if you take out the nock unibushing from an ACC, Luminock makes one for that size, I think the FMJ model or the smaller of the two models.
There you go guys, invent a lighted nock for an ACC, I'm sure I'm not the only one.