I agree with everything y'all said except I have been known to stretch a block or two (wink wink). Once the quilt is washed and dried it is unnoticeable. I am seriously lacking in precision as much as I try. I don't have any physical issues with my eyes or body that contributes to it. Just the way I am I guess. I try hard to keep the same ruler consistent when I cut, and I have a quarter inch foot on all my machines. I mostly make patchwork blocks and while I have made more complicated blocks with lots of seams converging, and may again, right now I am back to my favorite of scrappy patchwork. I do make a baby quilt now and then from a pattern and they come out fine. And while I love to FMQ on my domestic machine and am getting better at it, no one I have ever gifted a quilt to notices the actual quilting. So I do that for myself for fun even on a gifted quilt. It's all about the colors. And they wouldn't spot a small error anyway.