I spoke to one of designers of the Berkeley JG when I called CP Performance. I asked him about how to properly lubricate the bowl bearing. He said that grease should be injected into one of the holes on top of the bowl until grease oozes out of the other hole. I am in the process of installing a zerk fitting on one of the holes. Since zerk fittings only allow material to go into it and not out of it, I figured that I should not put a zerk fitting on the other hole. What do you guys put on the other hole to prevent water from going in there? Do you guys just put some sort of a threaded plug? Thanks in advance.