I decided to give EG a phone call, and go over the different lasts with them. This was the gist of the conversation: They make far more boots in the 606 and 202 lasts than they ever have on the 505. The 58 last is pretty much only for walking shoes, and they will not make boots with it. However, if boots are made on the 606, they will not permit a fudge welt, because of the squareness of the toe. Ofcourse this just gives me even more to think about.