I also tumble in walnut and skip the inside lube. On the outside, I like the Lee lube that comes in a tube. I put a small dab on top on my hand where it is always "at hand". When I finish sizing, I gently force the unused lube right back into the tube. I like it because it is not messy, like sizing oils and pads. It also works like a dry lube, so I do not worry much if a small amount gets on the inside of a neck. One tube will probably do 10,000 cases or more. I keep an extra tube just in case they discontinue the product. The Lee auto primer and case lube are the only Lee products I have ever used.