I've got an old Firebird III that came stock with a short Vibrola and a compensated wraparound bridge. I had a custom-machined tune-o-matic made so I could still use the Vibrola plus intonate the guitar. Recently I installed an "el cheapo" compensated wraparound bridge (compensation for the G is better than the original) and was completely blown away. Instant Trainwreck!!!! Sustain for days and completely balls-out. Plus no more tuning issues as with the Vibrola (every time you tighten one string it loosens another.) And no obstruction from the Vibrola arm. So now I'd like to get a high-quality wraparound so I can intonate the guitar properly. I've narrowed it down to the Hipshot Baby Grand, the Schaller 455, and the Pigtail bridge. Of the three the Baby Grand and the Pigtail are aluminum, which is somehow supposed to provide a "better" sound. The Baby Grand and the Schaller are easier to change strings on, which is a consideration for me. The Baby Grand's "break angle" behind the saddles seems shallower than the Schaller, so does that affect sustain? And the Schaller is by far the heaviest, which apparently is undesirable. Any guidance you could provide would be greatly appreciated.