Just an FYI, I have now talked to 3 trailer places that have said not to lube using the bearing buddies since it tends to push grease through the rear seal and then on to your brake drums. They all said to grease the hell out of the bearings, pack them really well, then grease the spindle and inner drum really well and that should be fine till the next repack. They said bearing buddies are fine to keep the dirt and dust out like a regular grease cap, but try to resist using a grease gun on em from time to time. My brakes were trashed from pumping until the water bubbled out around the spring. By that time grease had gone through the rear seal.
As far as grease goes, I just used the Green Marine grease from the trailer parts store. It was deffinately thicker than the marine grease I used in the past. Plus I think I used about 1/2 can packing my bearings and spindles.
Again, this is just my 2 cents and input from some guys who do trailers for a living.