If one has doubts about penetration, get Grizzlies or Hunter's Heads or Hills. I don't have a problem with crooked wood arrows. Surewoods and Wapiti and Acmes. I keep them bundled straight and they stay straight in the bundles. Before I finish them with Watco Oil, I may see a minor thing here and there, that is easy to fix. Once finished, I check them every so often, but rarely need to do much straightening. I find that a slightly bent wood arrow, when I get my quiver full of shoot away cheap arrows, will fly better and more on target than an aluminum arrow with the same bend. Don't know why that is, don't care, and that's the way it is.