Osage Bow Adjustment???

[northland archer]

Ok let's see if i can pait a clear mental picture for my question.  I have a beautiful finished osage flat bow with nice recurve tips.  Issue: both tips are slightly twisted in the same direction (pulling to the left when sighted down the belly)  I do see where the limbs are thicker on one side. Do i try to remove some belly material and get the limbs to pull back in line or do i go straight for a heat treat? Does removing even a little wood make that much difference?  The bow does shoot but i am afraid the string might come off at full draw and release.  Any input will be appreciated.  
Thanks Much

[John Scifres]

I'd do heat.

[northland archer]

Once the heat is done, do you give the bow a sanding and re finish?  If i can get this thing straight, i would love to put some skins on it.  Does all the finish have to come off the back before you put the skins on?  Thanks for the input.  
Treavor