Just finished my first rack of 8 - they sound and work great. Couple minor snags when I first started but by the last 4 it was smooth sailing. 4 N72s, 2 J99s, and 2 C84s. It was a bit like herding cats trying to get all the knobs through the front panel and I had to file the edges of two of the N72s to get them to fit but no big problem.
Thanks Tim for the kits and the help and this board and thanks to Tape Op for first the ad and then the reviews.
Next 8 will be the A12s.
Tim if you're going to Tape Op Con, I'll see you there!