I have a post into the Shapton Japanese Woodworking forum asking the guys why they think the Shapton DGLP as they call it (Diamond on Glass Lapping Plate) is the cornerstone of the entire Shapton CERAMIC on glass stone system but the Spyderco UF Ceramic seems to eat DMTs, another diamond lapping plate for lunch. We'll see what kind of responses I get. Some of those guys also mention having/using DMTs so they may have a dual frame of reference.