I have a 1989 JEM77 that I haven't touched for ages. Reason being the fret that have been reduced to unplayability after 27 years... I DO WANT to refret it but I can't find a luthier I trust (in Italy) as it's not only an old instrument, but also something that has deep and fond memories. Anyway...back to the point...after maybe 1 year and a half I put it out of the case for a re-string (even if it is unplayable, it's better to keep that tension) and I noticed that the Lo Pro Edge worn out very very bad...not rusty but it seems some way corroded. Is there some product to recover it a bit? Thanks.