mcconnachiea said: You could try using threaded neck inserts in your neck joint so that there will be more vibration running around the guitar.
I did it on my stagemaster and there is a very noticeable increase in sustain
THERE ARE ALWAYS EASIER WAYS OF DOING THINGS THAN CHOPPING YOUR GUITAR UP OR DRILLING HOLES IN IT.
lolalola- what kind of amp are you using, d'you mostly play clean/ overdriven/ whatever?
Compressors, in layman's terms, make everything coming through it the same volume before it gets to the amp, flatten out your playing dynamics, so for instance if you play softly, it still sounds soft, but it's just as loud as your overdriven powerchords and leads and whatnot. As such it basically gives you license to greatly increase your gain without blowing your house down, which is sort of where your extra sustain comes from. The label "sustainer" is kind of misleading in that regard.
Basically, if you play mostly leads, and get your distortion from other pedals, it'd be great. If not, it's probably not worth it. As you already have a buzzstop, other things to try before you go taking advice from mcdoofus would be:
-Thicker strings, which is what the Jag was designed with in mind
-Graphtech saddles on your bridge (I use the Stringsaver ones, which work a treat, but the Tusque ones are apparently also good)
-Higher action
-Higher output pickups, say Seymour Duncan QPs.
Hope that helps!