Have you ever heard of Phil's Tenacious Oil, sold in bike shops? It's a viscous oil used by some mechanics for chains subjected to lots of wet conditions or to minimal maintenance (i.e. kids bikes). Before putting grease on my current discs, I tried the hub assembly with this Tenacious Oil. It also produced resistance that I wasn't expecting. In any case, before the weekend I'm going to pick up a bottle of Master Pro Gear Oil you recommend. Thanks for all the info!