Thanks for digging this video up Marc! Makes me feel much better. I wasn’t entirely sold on not using the flat stones either, but was reading this thread where Josh says “You will be able to at least use the diamonds up to the 1k without issue, and the strops without issue, the only thing I can see giving you trouble is if you were to try and use the regular flat ceramics on it… the corners on the regular ceramics would shave off on the knife edge in that case. I would go from the 1k to the ceramics that are designed for the re-curves, and then on to the strops if you want a mirror edge. hope this helps…”. He then shows a picture of a nicely mirrored ZT knife with less of a recurve than the benchmade I am looking at. Later on in this same string, clay does make it seem like the flat stones work fine, as he demonstrated in the video above.