jnagel32, I use a little cooking spray on my gasket and in the body of the stuffer and on the moving parts of the grinder too. As far as tubes I use the largest one that the casings will fit on, if I remember right its about 3/4" or 1" somewhere is that range....You can buy a food grade lube that LEM sells if you want or if you have a restaurant supply house nearby they will probably have something that they can sell you, but I figure that if I have the cooking spray why buy something else…..Oh! Rinse the casings out with water, they are usually packed in salt and you need to wash the excess salt off/out of them. I usually just slip one end of the casing on the end of the kitchen faucet and turn the water on and all it to flow through for a little while…… after that keep them wet in a little water, it will keep them from drying out and being hard to fill…. 1 last thing, I don’t know what your particular stuffer looks like, but mine has a vent on it to allow the air to vent when stuffing, take that vent apart after your done and clean it out form the inside. Mine will get a little meat stuck in it and will need to be cleaned after ever use…..Hope this helps and Good luck with it!!!! ShoneyBoy