I love this method as well, but being in the math stupid category, would some one who has time and (lots of) scraps measure and cut the larger block that would be needed for the 3-1/5 inch blocks? The one that is demonstrated on MSQ makes the blocks smaller than that size. Is it a 7 inch or a 6 in ch or 7.5 inch square....okay, stupid and really (lazy) chicken to start cutting and experimenting.....