i used a heat gun and cooking oil( extra virgin olive oil- only the best for my trade bow recipient!!), and it worked really well- some kinks took a few treatments.
i found that you cant feel it go "soft" like osage- so i just heat the belly and sides until i feel the heat migrate through to the back- until it is too hot to touch for say 3 seconds.
i DONT apply any heat to the back!!!- then bend and clamp, i always got about 40 to 50 % springback- so the severe kinks i had to do a few times. and i did add in some backset over the whole limb- just did it in stages.
g'luck
wayne