Bought a kiln dried Hickory board to make some bows with once from the Amish in my neck of the woods. I ask him to check with a meter ,and it read 18% moisture. If you have every thing lined up ,and straight put your bow in a vice measuring the same distance with each limb, and hang a gallon jug filled with water from the tips. Give each limb a half hour or so heat treat. The back should even fill very warm. You will end up with some good reflex even now. String it back wards to hold that reflex, and put it some were really dry,and store a couple of months. Then tiller it.