I guess I messed up. I didn't realize that HST must start out bigger than the other squares. I'm using precuts 5x5 for the squares, so the HSTs have to start out bigger than 5", right? I'm using triangulations, and it says the 5 3/8" for 4 1/2" finished block. Should I string piece or any ideas? I feel pretty ridiculous, lol Geometry is not my strong point. ha ha