Like the others said above, simple bearing buddies do little for the inner bearing set, once the hub is full there's no where for the grease to go except out through the rear seal. Is there grease between the seal and inner bearing, can't see it, ya don't know. Warm bearings into cold water, guess where the water gets sucked into, past the seal and into the hub. Even the newer Dexter axles that are specifically made to grease the inners and outers recommend service. If you do your own bearings, go to the bearing shop and get the double lip or double seal bearing, much better quality. I get mine from Canada Bearing in Barrie, seal is made by Chicago Rawhide. It's also recommended to use a quality no wash out grease, similar to what snowmobiles use. I had bearing buddies for a couple seasons, I got rid of them and went back to the tried and true method.