Hickory/sinew

[JW_Halverson]

Thanks guys for all the kind words Big C  the tips were left wide & some what thick ,I steamed them for 1 hr and I applied dry heat at the same time & slightly toasted them & coated with shellac after they cooled to prevent any cracking , there was zero spring back when I removed them from the caul I used denatured alchohal to remove shellac & degrees the back ,then washed every thing with soap & water & lightly sanded , when dry I just put on a generous sizing coat of liquid hide glue , I soaked my sinew in warm water squeegee it off  did the same in the glue & put it on in thin layers that was it nothing fancy.

Sounds like you were paranoid prepping the back prior to laying up the sinew.  Good.