I haven’t seen or heard anyone doing this so I’ll pass this along. I have a problem (“Issue” for you modern types) with a teak deck on a boat built in Twanin in the mid seventies. The deck is so worn that the screws are showing. Luckily they are bronze. I bought a 3/8 inch router bit for my plunge router, limited the depth to 3/16 or so and plunge into what’s left of the plug and right down into the screw grinding the slot off if need be. You have to hold on tight and go slow or else you’re in for a wild ride. After all the bad screws are done I epoxied in the new plugs. Chipped them flush, cut new groves where needed with my trim saw, caulked with Silkaflex and sanded the mess with 60 grit to start. It doesn’t look new but you will get the last few years out of the tired old deck instead of ripping it off. I tried it on a stainless steel screw and was greated with an instantly glowing screw and lots of smoke. W.