I sure hope no one thinks my joinery is sloppy or crude by my comments. Although I do push it right up to the line at times, all in the name of efficiency. Which brings me back to why I draw bore, efficiency. Square rule is efficient, too.
This discussion reminded me of the French Snap. It is a fairly crude but efficient method in shaping a tenon and would leave the shoulder tight and the bulk of the tenon possible shy of the mark.
Ken, the article on daisy wheels was great. It kept my kids and I busy for a number of winter evenings playing with the compass. I just read about the "illegal" windows. Did you do work on the frame in Fig. 24? The tie has a patch. Tim