The bridge on the subject Martin 000C-16R GTE is lifting slightly. I understand from the owner this problem was addressed by another repairman some time back. However, the bridge is lifting again and one can actually see a film of glue under the bridge. It didn't take any effort to insert my custom thinned spatula under the bridge. It was agreed that the bridge has to be removed, cleaned and re-glued.
The area around the bridge is carefully masked and heat is applied to the bridge to soften the glue. The bridge is then slowly and carefully removed. Notice the film of residual glue on the finish. The earlier repairman applied the glue in an attempt to glue down the bridge but in most cases, this is an exercise in futility as all wood glue works best when there's wood-to-wood contact. The margin of lacquer that borders around the footprint of the bridge is larger than necessary. I would prefer to see about a 1mm to 1.5mm border shy of the actual bridge footprint.
The residual glue are carefully removed, and slowly and carefully removed. The bottom of the bridge is also scraped clean and sanded to conform to the radius of the top. I'd also enlarge the gluing area of the bridge by removing the lacquer around the bare wood thus maximizing the gluing area.
The position of the bridge is then located and masked before gluing. The drill bit also helps to prevent the bridge from shifting when clamped later.
The bridge is clamped and glue squeeze out cleaned up.
The guitar's strung up 24 hours after the bridge has been clamped.
The guitar's cleaned up, electronics installed, set up and ready to go.