I see amsoil has a couple options for grease with a calcium sulfonate thickener. I thought they used alumuminum complex? Anyhow, for dual use as both outdrive gimble, outboard swivel and boat trailer wheel bearings which would you advise? Looks like the best options are either then polymeric offroad #2, synthetic multiple purpose #2 and the Synthetic Water Resistant grease. Obviously the latter is directly applicable, and the polymeric has a bunch of moly which may leave something to be desired- but is there any real reason to either avoid the polymeric or to select the water resistant above the multipurpose?