The last test I did with Bfgminer is from over a month ago. At that time Bfgminer was not 100% compatible.

LukeJr, the developer of Bfgminer has make some effort to get Bfgminer working correctly with our boards, but it requires a firmware change on our side and I have been too busy to answer him. Also the demand for Bfgminer in combination with our boards is low, so it got on a low priority.
I will download the latest version of Bfgminer and check the current status today and inform you.

Cgminer works best with our board and you can run cgminer and Bfgminer next to each other.