I don't understand how a company with otherwise great workmanship, didn't at least put on a few coats of sheilding paint. I would have thought that would have been pretty much standard on American made instruments by now.
Of course shielding should be included from the factory considering the price point for a USA G&L. On the entry level Tributes?...sure, no shielding is understandable. Gotta make compromises somewhere to keep the price down, and to not discourage potential buyers of USA models.
I'm reminded of the infamous G&L "spring ping" noise issue that was caused by not inserting the much needed little rubber bits into the pickup mounting springs at the factory before installing the pickups. Without those little dampers the springs would vibrate and make an audible ringing sound, which was heard by the pups and added to the output signal. I can only imagine how many players were turned off to the G&L marque when they heard that unacceptable noise.
It seems G&L failed to dampen the springs right around the time that Leo passed, and continued to ignore the problem well into the 2000's. When the issue was finally addressed, their answer was to abandon the spring system in favor of the old school rubber pad system. The original spring system that Leo developed was superior to the simple (read; crude) foam pads of yesteryear, a true improvement. But he realized the springs needed damping to stay quiet. Little rubber chunks dropped into the springs....cheap, fast, and effective. How that little detail was overlooked for so long (and apparently never understood) by BBE is remarkable to me.
That said, I benefitted from the failure when the JB-2 was introduced in 2001 (sans rubber dampers, of course). Having s/c pups meant the JB-2's pickups were microphonic, which is good. But s/c pickups 'hear' everything, way more so than the MFD's. Thus, the JB-2's suffered badly from the "ping" noise. Nice used JB-2's popped up on ebay for cheap money because of it. Score!
I don't have any noise issues with my G&L's, neither older ones nor newer ones. But now I'm curious to know which ones have shielding, or not. Guess I'll have to look inside....