Anyone use Drag oil from Drag specialies? I recently had a service done (5K) at a local chopper shop recommended by a friend. They did quality work and the bike was running excellent afterwards. Anyway, the tech said they can put whatever fluids I choose, or use they're recommendation, Drag oil. Figured I'd try the drag oil. Seems to be just fine. Just wondering if anyone had any issues with this oil. I usually run mobil 1.