Are you sure the saddle is higher on the treble side? Sometimes Guild BRIDGES are thinner on the treble side than the bass side (I have seen >1/32" difference), and this can make the saddle APPEAR to be higher on the treble side because more of the saddle is showing above the bridge.
I have always heard the saddle should be loose enough that it can be easily removed, but tight enough that it DOESN'T fall out when the unstrung guitar is turned over...
When I have encountered stuck saddles, I first try to grip them with my fingernails, and see if I can rock the saddle out. Next, I would try to grip the saddle with needle nose pliers or my fishing forceps (AKA "hemostats;" my fishing bag hangs on a wall close to my workbench, so the forceps are convenient to grab). Grab a thick portion of the saddle at one end away from where the strings cross (don't want to chip the saddle)... I sometimes try to add a little rocking motion (hard to do when the saddle is tight). If the saddle is really low and I can't get a purchase with pliers or forceps, I will sometimes use a pair of small diagonal wire cutters, gripping one end of the saddle RIGHT UP AGINST THE BRIDGE... but be VERY CAREFUL... use only enough closing force to grip the saddle, w/o actually chipping or nicking it (I have never damaged a saddle doing this, but the potential is there).
When I got my DV-72MK, the saddle was so tight that it wasn't even sitting down into the slot, but was wedged tight against the sides of the slot. I didn't realize this at first, and ruined* TWO Bob Colosi saddle by sanding them to match the height of the old saddle... when properly installed, they were TOO LOW, because the old saddle itself was too short. Embarassing that it took two saddles to figure this out, but it never occurred to me that the old saddle didn't reach the bottom of the saddle slot.
*I was able to re-purpose one the too short saddles to another Guild that needed a shorter saddle.