A follow-up to my last post, but this time aimed at the SW&D crowd.
I have trouble finding jeans that fit. If your seat-to-waist ratio is greater than the six or seven inches that is industry standard or you have muscular legs, then you probably have similar issues. When I find a pair that fits in the seat and thighs, the waist is usually two inches too big. The last post was about adding darts to dress trousers- I do this with jeans as well. Taking two darts in the back I can remove from 1 1/2″ to 2″ in the waist; this takes care of the added circumference but also makes for a more flattering fit in the seat.
Regarding the question about the back yoke for jeans;
Starting with a basic block with one or two darts, draw your yoke line and split the piece, adding seam allowances. Cut along one dart leg and close the dart, repeat for the second dart, then smooth out the waist and yoke seam lines.