I have a '78 preceision, just got an sx jazz, and also have an ASAT bass... The ASAT has much better sustain characteristics than the other two, and I was curious as to why... Many folks here have opined that the mass of the bridge makes a big difference. The ASAT has the giant zinc G&L bridge, so that could be the reason. On the other hand, it doesn't add all that much to the mass of the bass, and all three bridges are fastened down REALLY firmly to the body... So I started to wonder about the one other thing that is different about the G&L bridge--the set screw on the side that locks the saddles together. Leo Fender thought that would make them resonate as if they were one piece--and provide better sustain. I have looked at the major bridge makers--Gotoh, Schaller, Hipshot, Badass... None of them have this feature. Nobody else gave Leo enough credence to try this, it seems. So, I went into my tool shed and found a 3" C-clamp. I clamped the saddles together on my Precision. A-B'd it several times. I have to tell you that I got appreciably better sustain with the saddles clamped. It could be that the extra mass of the C-clamp contributed...but I am pretty convinced that its the clamping that made the most difference. So here's a question... Why hasn't anyone (besides G&L) put out a bridge that clamps the saddles together? Has anyone tried making a p/j-bass saddle clamp? I am thinking about making one myself, but it would be such a simple, easy improvement, surely someone else must have made something similar?