Hi QuiltE
Not being a fan of Y seams I decided to print the templates onto freezer paper, iron this to my fabric, I then carefully cut each piece out with scissors not rotary cutter. I then drew on my 1/4 inch seam allowance in pencil so I could see where to stop at each corner. I also did a few reserve stitches so it wouldn't unravel on me. It was slow going but was pleased with the end result. Good luck