MM Grammostola porteri balding chelicerae?

[Little Grey Spider]

I adopted this male already matured last December. I was told by his previous owners that he molted July of 2016. So he is roughly 14 months out past ultimate molt (but who knows, they told me he was female). I've never had a mm before but his chelicerae appear to be balding. Where they were once very fuzzy, they are now balding on the outer sides. Is this a typical part of an aging male? I am not overly concerned, just curious and I could find no other threads on it. I'll attach a photo for reference.