I just found this thread and this does sound like fun although I do have a question...you said we're making one block per week, from either easy or challenging, and the third week is catch up? So the fourth week is another block? If so, with 52 weeks in the year and we take out 12 for catch up weeks, that will give us 40 finished 12" blocks? Is that right? So, if I make 2 extra blocks and end up with 42, I will have a quilt format that is 6 blocks wide and 7 blocks down and a finished quilt of 72" x 84"?