BadPiggy
Hooligan Asshole
Not sure, different production batch maybe?
Interesting.
Just called TSS.
They place those lot numbers on the rings just before shipping.
They record who received what lot numbers when sent out.
If they catch a bad gear going out...or a gear fails after it's gone out...they know who to contact.
Sounds to me like it's one way for them to lookout for us, the end user.