358jdj,
The Lee system works at the lower velocity levels. It's messy, gums up the seater die, smells a bit, and smokes quite a bit. I don't use it any more. If I'd known then what I know now, I wouldn't have gone the tumble lube route at all. That said, if you're planning to shoot thousands and thousands at cowboy action velocities, it saves a lot of time at the bench lubri-sizing.