In reply to message posted by Bruce T:
DAMN I hate when that happens! I have had to use a sawzall with a small metal blade to notch the inside of the drain piece.cut out a small section without cutting too deeply into the females threads of the shoe.
this makes it a lot easier to unscrew. Use a flat screwdriver and tap it with a hammer on the edge of the newly cut piece to unscrew.
Perfect, Im glad you were able to do it YOU just saved yourself a few hundred dollars.
Congradulations you are good