When I got the nerve to order a OC it was a B plate for my Karve brass razor. Before that I had the B & C - SB plates. I found the OC smooth, but most importantly I really enjoy the lather flow through.
I have gotten other OC razors including Timeless SS & Ti .95mm, Blackbird SS, but my favorite so far is the R41 regular and SS. I have also gotten the Karve “F” OC and the ”G” SB plates ( thanks Never-Stop-Learning). These Karve plates are a joy to use and so wonderfully efficient and smooth. My SB & OC
“B-E” go unused now. My next razor will probably be the Tatara Nodachi OC.
I had Karve OC plates lead my discovery of OC shaving.