The only options I can express an opinion on is the PTB system and tremolo, since my Legacy is pretty basic and has the 7.25" radius. I really like the PTB. For one, it allows tone control over the Bridge p/u which is great to have on a Strat. Also, it's nice to be able to cut bass frequencies on the Neck p/u.
As far as the trem, it works very well and has a quick release trem arm. I can't say that the guitar returns to perfect tune, but I think it's a nut issue as opposed to trem. Overall, G&L guitars are very well made and sound great.
Dr. Z Carmen Ghia