I've used both methods, too. I will admit, when I stitch and trim, my blocks aren't always straight. When I used the precut logs way, I wanted the blocks scrappy and it was overwhelming for me to make sure I had enough strips in different fabrics and sizes to avoid duplication. Maybe it I'd been going planned and not scrappy the precut logs would have been fine. I do think that having one come up short would drive me nuts, though, and that doesn't happen with the stitch and trim method.