there are signs telling me that Chef21's is a pre-03 RG, i.e. Lo-TRS, not Edge-III. in fact, the "new" trem he put in the Lo-TRS place is one of those licenseds with wide wings, not a Floyd-direct licensed (narrow wings) like the Schaller or the Gotoh. i tried to put a Schaller in an Edge-III cavity and it did barely fit in width. now, a wide-winged licensed wouldn't. check this pic:
now look at these pics, it's an Edge-III cavity, and look how narrower in comparison with Lo-TRS's, keep the pickups width or pickups' screws as a reference:
and look at the back of the cavity, they look different in the spring block's area:
(see slanted walls and routing on the bass strings side)
(see square walls, and no routing on the bass strings side)
also, see how the tail's cavity is shorter than the baseplate cavity on the Edge-III:
in comparison with Lo-TRS's which has a tail cavity the same lenght of the baseplate cavity:
i may be wrong, but those cavities are different, and i can assure you that a wide-winged licensed WON'T fit the Edge-III cavity (unless you set it so high it stucks out of the cavity...). :