Fading Autograph Question

[pclpads]

All the signed BB's I have obtained were IP at shows by the signer. Never bought any at auctions. Haven't attended any shows in 20 years. All the balls have been in a dark, humid free closet in a covered plastic display case, no sunlight exp. I don't handle them. Now, most of the sigs are history. The blotches on the stained Aaron in the pic are similar to many of mine. Leads me to think that tannins used in the rawhide are the source of the light brown oil stains and the faded pen ink. As a result of this, i no longer buy or have signed, any BB's. Money wasted, like a lot of things in this hobby. Some day, I'll likely put the whole damn lot in a curbside bag for the Goodwill.