^ +1 irish moss
The .5 oz added @ 20 min won't give you much in the way of bittering which is something I thought you were trying to achieve.
The roasted barley sounds like a nice addition, but as stated in my earlier post, the Carabrown would be easier and a nice addition. This is only offered from Briess for a few months.
I guess I'm going to have to brew a brown now that I'm thinking about it.
So many different yummy brew styles and too many busy weekends!