the thinner your limbs the easier to heat straighten. i like to get them bending a wee bit before i get out the heat gun, but you probably could do it at this point. i nifty trick to get the twist out, is to put the bow in a vice, and put a crescent wrench on the limb (i use leather to pad the jaws so i don't damage the back.) then hang a bucket from the handle of the wrench. heat up the area to be untwisted till its to hot to hold your hand on it, but not discolored, and then add water to the bucket until it straightens out. remember it will spring back a bit so take it a little bit farther than straight. leave the weight applied to the limb until it is room temperature, or at least just warm.