Three Friars is OK IMO. I think that the Burley takes something away from the blend. I will smoke what I have left, but I'm not sure I will buy anymore of it. There are other blends from C&D that I like much better.
Here is my review of it that I did awhile back: Cornell & Diehl #972 Three Friars - Pipe Tobacco Reviews
Cob Plug is Sam Gawith's 1792 in a brick. It's a pretty stout tobacco.
http://www.marscigars.com/samuelgawith-plugs.aspx
I cut it into widths of a broken flake blend like #2015 and rub it out.
There's a description at the bottom of the link about preparation that I might try.