Quote (chronowarp @ Feb 19 2012 04:38pm)
1. Intonation is only related to the length of the resonating part of the string. You only adjust intonation by moving the bridge saddles in/out.
Sustain is an issue of...body wood, string gauge, string action, technique, bridge material...floating/hardtal bridge.
2. I'd adjust intonation after I'd make any adjustments to the bridge/truss rod.
3. Take it to a guitar tech. GC is probably not the best place. The one around here has recently started supplying tech work, but they're all retards. Take it to a local music store, like a Kennelly Keys, Mills Music...they typically have qualified techs who can level your frets.
If you want more sustain get a better amp and use a more overdriven sound and/or a compressor. Raise your string height, using a larger string gauge.
I lowered my action ALOT from when i first got the guitar, and i think now this may be why it doesnt ring as long
it would be interesting to set it back to that painful setup to see if it did make it sustain better tho