Barbers Hone Question and Cutting a Stone Question. 2-4-1 (twofers')

I guess it's legal to ask two questions in one post.....

first, has anyone used a Cotl barbers hone?

and secondly, has anyone tried to split/saw/chisel a stone in half?

I have a Shapton Glass 1K, (OK, not a stone), I would like to cut in half but not sure what will work without chipping chunks out of it.

Any help?

Thanks, Dave