i don't think you should put 1 tube of grease in each wheel, i don't think the grease seal can stay in place and not leak grease onto the brakes, 9 times out of 10 its the outer bearing that fails from lack of grease ,my trailers have the EZ grease set up and i still pull the wheels to inspect brakes and bearings,
i bought a enclosed trailer 2 years ago ,the guy said he greased bearings 2 times with the EZ set up ...
well i pulled the wheels last weekend and grease on 1 axle ,both sides had grease on the brake shoes, no grease to outer bearings, but the inner bearing had a ton of grease to it.
i would recommend packing the bearings by hand verses the LAZY EZ way of packing bearings.
just my personal opinion
