I have this 17" morris and it looks while it was stored from a previous owner they had some heavy stuff setting on it. One end has about 1/4" bow and the other 3/8", center looks good. I popped the keel off when I got it hoping to alleviate some of it. I have an idea to go about it and get it straight or over correct and poor some boiling water on it. Who's had good luck with this type of repair and what was the technique?