To Lube or not to Lube. Seems to be personal choice. I once forgot my lube and after 2 round of 6 in my Rogers and Spencer the thing was spitting em all over the place as the barrel clogged up with powder residue and was a right old devil to clean. Iv tried water pump grease which was ok but still prefer wonder lube to cover my balls. Keeps the fouling soft thus aiding cleaning, doesnt gunge everything up like grease does and it smells good too. (If you like the smell of germelene.)