Some of my most accurate arrows are crooked as hell. I make a bunch of them and match bows to arrows by shooting them. I am not real scientific about my approach. One thing I do that has really helped me is to shoot them before fletching them. Cane arrows have a definite stiff side. I bareshaft shoot them a few times. Nocked one way, an arrow may slap the side of your bow and shoot poorly. Nocked with that stiff side to the bow, it will shoot better. I mark the arrow so I know which side goes to the bow and then fletch it. Since bareshafting hunting points is dangerous, I use a brass cartridge case for a point when testing a shaft. I can pull it off and put a broadhead on later. Cane makes a good arrow, but I don't think you have to stress over laser beam straightness. I sand the nodes down where they don't sound like a rub board and see how they fly. Keep the good ones and try the "not so good ones" in different bows and you may find a use for them too.