Lastly, for now, was to change the chain. Went from an economy DID to a Renthal R1. The DID chain is at least 10 years old and was stretched by a half link compared to the new Renthal. Weighed them for the heck of it, and was pleasantly surprised. Especially considering there's probably another few grams of thick tacky wax on the new chain, while the old one is pretty dry.