Thanks for such a fast reply Tig. I set the Profile to ON and thickened up the lines a little. Gave me a much better idea of what was going on. There was indeed a line missing along the inner most edge of the section I needed to define. While I couldn't quite get the newly drawn line to go exactly where needed (slight offset), I was able to more/less achieve what I was trying to do. No doubt I just need to "play" with it a little more to figure it out but at least I'm now pointed in the right direction.
Thanks again!