Yeah, I read that in the sellers ad.I find it hard to believe that a company with such a fine reputation as Gretsch could have had that sort of a problem, and it apparently went on like that for years! Heck, even cheapo MIJs didn't suffer from problems as basic as getting the shell sizes accurate.
Don't kid yourself. I can tell you with confidence that Gretsch quality control was not always spot on. Old Gretsch guitars for instance, were simply not that well made to start with. Today, most of them need neck resets, the binding they put on the bodies and necks tends to disintegrate, and the electronics were pretty crappy at times too. They just weren't very good guitars. Obviously, they had tolerance issues also on the drums. I'm just not a fan of anything made by Gretsch, although I have tried. Repeatedly.
Keep in mind that Gretsch and all the other MI companies were producing instruments in record numbers in the mid-60's after The Beatles hit, so QC was bound to nosedive a bit here and there.
The guitars made by Gretsch these days in the Terada factory in Japan, are the best ones they've ever made, period. I have no idea if current Gretsch drums are equally well made.