Yep, it was the cushion strop hone.

I figured out a way to lap it without any problems. I was kind of proud of myself, actually. What I did was put the DMT in a little basin of water so that the water just barely covered the surface of the diamond hone. Then I could lap to my heart's content without getting the leather side wet. It worked great.

I took the liberty of working on the leather side a bit afterwards. It was cupped and slick with gunk, so I cleaned it with lather, pumiced it and applied some conditioner. I think it might actually work as a strop now.

Josh