If it's a mild twist, I don't usually worry about it. You can tiller part of it out as you go, too. If it's enough too be annoying, I clamp it down on a caul and heat the twist out-you can reflex, even up the limbs, temper the belly, and remove twist at the same time that way. One of the better shooting bows I ever made had a pretty good prop twist to it, so it doesn't hurt anything as long as it isn't really bad.