The rotozip works nicely for cutting out the plaster. After that I like to use a half-inch speed bit and make a little 'swiss cheese' in the lathe, then use dykes to cut the lathe out. I also prefer using metal cut-in gem boxes instead of the plastic ones because the metal box isn't as big as the plastic and the hole to be cutout doesn't have to be as large if I were using a plastic box. Did the make any sense?
