Thanks for posting. It looks interesting but I am a bit cautious when I use a calculator. I make sample blocks out of the same fabrics that will be in the quilt, then I (normally) change the pattern a bit sometimes at the beginning but more often when I am half way through so all of my calculations are way off. This does not even take into account the mistakes I make (I should not cut/piece when tired - sigh). I usually feel safe if I add 1/2 yard per color. Now with the Accuquilt Go I am trying to learn how much waste to calculate into my measurements.