I have done a few. rough it up good with a dremel with a small round burr. undercut the lug area and drill tiny holes (1/16 works well)at all angles especialy in the recoil lug area. clean well with acetone and make sure the bedding material gets forced into the holes. this will help give a mechanical bond for the bedding epoxy as it doesn't stick that well to injection molded stocks. I have not had one loose bond using this method. keep in mind it will not turn tupperware into a macmillian stock. it may or may not help as the forend tends to be quite flexable on plastic stocks.