I would use a heat gun myself. You can do the heating several ways. You can heat the limb until it's good and hot to the touch, but not discolored, and wedge it in your jig/vise and bend past straight, then back to straight. It'll hold that correction just fine if performed properly. Or you can first place in you jig/vise, heat until you feel the limb move and proceed from there as was mentioned above. Everyone has there own proceedure, this is mine.......Art