You might want to have a look at my post "Ultimate Karve Buyers' Guide". This post contains an email from Chris who designed and who makes the Christopher Bradley. In it he provides insight on how to choose a guard. Based on Chris' advice, I ended up with a B C and a D. I just tried the C and it shaves very much like my Aristocrat Jr. No blade feel, close comfortable, smooth. Perfect with a Feather. I expect that the B and the C will end up my go-to guards.