sinewing the whole bow is alot of work, and I am not sure that is needed for that one spot,,if thats what it took to make it work I would do that,,sometimes success takes a bit of risk,,,
anytime we make a bow, there is a chance it might not work,,even on a seemingly perfect stave,,
you have at least two experienced bow makers that think a wrap will work,,,,
and have fixed similar issues,,
if you want to send the bow to me,, I will pay the shipping both ways and fix it,,I am not afraid to try it,,
I dont really see it as a big problem,, a sinew wrap is not too much work really,,that being said, on those snakey ones,, a rawhide back can help on the curvy areas trying to split,,and a rawhide back is easy to put on,, and wont hurt performance,,
ok just one bow story and Im done sorry for the long post,, I dry fired one of the first sinew backed recurves I made,,it was my favorite hunting bow,, it blew into at the handle,,well I was sick,, when your bow is in two pieces its hopeless,, well I sinewed it back together, ,didnt look pretty,, its still shooting today,, that was 15 years ago,,