Thank you-I will look at some GWB suppliers to find accessories that will work. I want to expose framing on both sides of the partition when possible, including the braces, and I have seen the walls framed that way, so it must be the j channel method you have described. It would help to tour a home or two and remember to look and see how that is handled. It is a little difficult to understand without a photo however you have pointed me in the right direction.