yes iam useing 2 dmts but not at the same time . the thing is that every hone i lap starts out domed. the flat starts in the middle and depending on the hone works slowly or in the case of the Ark. very slowly out to the edge. i was wondering if other people have seen this. i have lapped maybe 20 hones in the last few months
I suppose some might come from the maker slightly domed . I've never really noticed it , but it's been a while since I lapped a new hone .