Also, I have paper-pieced square in a square - thanks to a bright idea from a Board member - and you can do whatever side you want, make the paper pieces yourself. Perfect every time.

One of her instructors spoke at our guild a while back and I was interested enough that I bought the ruler and a book. The instructor stated there were several errata.
I used the ruler and liked it very much, especially for snail's trail blocks.

I can't thank you enough for bringing up this ruler. I had picked one up at a yard sale...who knows when. I went straight to my peg board and it was still hanging there in the big ziplock. Pulled that baby out and started making square in a square blocks of all sizes, now to choose the size I like the best and make more !! Maybe I'll actually get a Halloween quilt made well before the holiday !! What fun !!