Good question. With a torpedo, I go for about a 1/4" to 3/8" cut, and I have learned that cutting less than it looks like I should (with a normal ring gauge cutter), gets me to that point. So, I cut as little as possible, and if need be go for more. Whereas, if I cut too much to begin with I can't put it back. Know what I mean? Jeez. I don't think non cigar-smokers appreciate what we go through to relax and enjoy our smokes. lol.