Heat treating question for a sinew backed osage bow

[BrokenArrow]

I don't have a picture but I have a sinew backed osage bow which I recurved the tips far too much.
My question is can I heat the sinewed tips using dry heat to uncurve the tips and not upset the sinew and glue.
The sinew is fully dried.

Thanks

[Pat B]

If the tips are static you could remove the sinew from the non-bending portion. A sinew wrap at the termination should hold the remaining sinew securely. You can safely heat the tips then to straighten them some. The sinew and glue can't take much heat.