Not trying to cause trouble, but I've had some problems with G&L guitars in the Past. Caveat Emptor.
I don't know how G&L are making their necks now, but in the '90's when I was buying them, they had two piece maple necks. Very carefully matched two piece necks but two piece nevertheless. I mention this because I had two G&L necks that warped significantly on one side when the weather would change (that's how we say 'rain' in Texas!). Again, this happened twice, on two stunningly beautiful Tele necks with upgraded wood, etc.
When the first neck would go out of whack, I would take it to the dealer about 30 miles away, an old friend. Neither one of us connected the change in the weather with the neck issue. I'd drop it off at the store, saying something intelligent like, 'the neck's messed up' or, 'it's buzzing'. The store's tech, who had other things to do besides wait on me hand and foot, would look at it several days later. By that time, the 'weather' would have cleared and the guitar would be back to normal. This happened more than a few times and the guys at the store started thinking I was a little off.
The last time it happened, I picked up the seemingly normal guitar from their shop and drove home. By this time, I was beginning to get the idea that the issue was weather-related. Later in the day, I saw some rain clouds coming in, so I drove back to the shop, dropped the guitar off again and told them, 'look at the guitar TOMORROW.' They did and finally, they could see that one side of the neck was way out of kilter! I got a new neck.
Guess what? The replacement neck would go out of kilter, too, though not quite as badly as the first neck. That guitar went away, along with several hundred dollars worth of value.
Had another friend who had a G&L with a non-operable truss rod. Another store had to replace that neck, too. Over the years, I've had two players call me up and ask about G&Ls with neck issues. It was always the same deal, one bad side on a two piece neck.
What I got out of the experience is the opinion that G&L neck wood, for whatever reason, was not properly seasoned.
Finally, I've had a couple of S-500 owners tell me they didn't care for the trem system. One guy said, 'you had to have the hand of God' to make it work right. I wouldn't know about that, but it ain't like a Stratocaster Trem!