I just bought a pair of LS90 black speakers at a flea market for $85. I have them in line with my PSW12 sub, CS1 center and they sound great. The only issue I have is the black stain finish. There are a couple of places where the stain is gone down to the veneer. I don't know if there is a particular stain I should be using. Any special techniques? Recommendations? Thanks for any input.