I am patching holes left after removing some recessed lights. I know how to glue/screw wood strips as a back stop to attach the drywall patch to. My concern is that the current plaster on the current ceiling drywall is up to
1/2" thick in places. Rather than have to build up the plaster on the patch to the 1/2", would it make more sense to use a shim to bring the patch to within 1/8" or so of the final surface before taping and plastering? Would the different thickness of the final plaster cause any problems?Thanks, Bob Abbott