I'm not sure if this has been posted before, but I just discovered something on a quilt I'm making. I am making Jenny's Fence Rail Quilt with Diamonds, which requires me to snowball two opposite corners of each block I'm making. I've noticed that my snowballs are a little short when I sew directly on the diagonal of each square. If I sew just a smidge (even less than a 16th of an inch) towards the soon to be cut off side, my squares lie perfectly. They press out fully to the sides of the block. If you sew directly on the line, they seem to me just shy of making it fully to the sides/corner. Just thought I would share. It was starting to stress me out, but now I feel so much better once I figured out how to fix this. Happy sewing!
https://www.youtube.com/watch?v=rq0Oo3K7-1I