I've had #13 and #11 for both Scrapyard and Busse's. In my limited experience #11 knives are perfect and #13 is a little less stringent in fit and finish.

BTW - I'm at a McDonald's using their HotSpot. I still have no internet connection at the new place. They forgot their wireless stopped working three weeks ago. I'm going through withdrawls. <img src="/ubbthreads/images/graemlins/banghead.gif" alt="" />