I have heard of other members using this stone to set bevels, though I cant recall who it was at the moment. It may have been JimmyHAD who mentioned it...?
I cant think of a reason why you couldnt use one though! :) Its the right grit, and you know the stones are guaranteed flat so I'd have thought it would be a good stone to use.
I have the DMT 325 which I have used a couple of times for major edge repair and to lap my Shaptons and it works great. I really like it, and if it ever wore out I'd replace it in a flash.
Hopefully someone who uses the 1200 will advise further..!