old news indeed
Been doing this for years. One of the oldest refurb tricks in the book. Just make sure it gets good and dry -- a little canned air will do the trick.
Bonus Tip: squirt all the contacts with brake rotor cleaner. It's the same non-residue stuff as electronic contact cleaner and costs far less at the auto parts store. Do this part outside. Inhaling that stuff is bad for the old neuromuscular responses and your typeing giws all to hrll.