One limb needed that hinge looking area moved a bunch and the other was twisted starting about mid limb.
I surrounded the area that needed to move with the foil and let the hair dryer blow in there til the wood was hot to the touch. I then slowly clamped in the direction I needed to go with the hair dryer still going. I then let everything cool and unclamped.
For the twist I did the same but added a leather covered block on one side of the limb and heated a larger area. Both areas I went past what I needed anticipating a little bend loss.
The hair dryer was actually kind of nice. I could leave it heating without scorching the wood and it makes you go slow.
Rob