Went to the DMT site to read about the Duosharp as recommended- & saw the Diasharp. Main diff seems to be: holes vs no holes, double vs single sided, and the Dia comes in more fine grits- up to 8k, but would not need lapping or soaking unlike the Norton 8k. Ive also read that the Dia isnt certified flat,
has anyone had any Diasharps that didnt hone well bc of the lack of "certified flatness"?
Just got off the phone with a DMT rep, she said the Dia is also as flat as the Duo.