You can still get the cut the ends of the stick crooked with a Zona saw. Phil mentioned the Northwest Shortlines sanding tool. I have one from Fourmost Products called the Miter Sander #154 that is similar. Just cut the sticks a fraction over long and sand to fit. Takes a couple of minutes per joint, but the gain is strength and appearance are worth a little work. If I mess one up, I just use the stick in the next shorter space.