I am not happy with the chamfer on the outside of my case mouths. I had been using the original RCBS chamfer tool that came with my prep center many years ago, I have since upgraded to the Lyman tool. It seams that both tools but way to much tapper on the case and even leave a ridge if I don't waller the case around on the tool. If I just push the case straight down on the tool it doesn't get all the burr off especially on cases that needed quite a bit of trimming. Am I over thinking this? Is there a better tool for outside chamfering?