for example if you had a 52 inch stave,, and it was wide enough to get two bows 1 1/4 wide
make one sinew backed and one self bow,,both bendy handle ,,straight tip
draw length 25 inches,,
if you put the right amount of sinew on,, it will hold some reflex and shoot in the 170's
ok now the self bow, even if you heat some reflex in,,most is probably gonna pull out,
but it will shoot hard,, pretty hard at first, but after 1000 shots and being left strung for hunting,, its probably gonna have a little set,, and not shoot as hard as when new,,
ok the sinew bow,, it will probably hold the same profile as new,,and shoot about the same,,as when new,, probably out shooting the self bow sister at this point,,by a little, not so much a deer could tell,, but through the chrono,,
now that being said,, if you had a good 66 inch stave for the self bow,, you could get it to shoot about as hard as the sinew bow,, and it would stabalize and shoot like that from now on,,
so on a short bow the sinew will have an advantage,,but on a longer self bow,, the self bow holds its own,, thats been my experience,, lots of variables, and there are exceptions to everything I said,,
on this site,,, if you say it cant be done, theres somebody doing it,,
I will say I love both sinew bows and self bows,, so I am not that biased,, and love to hunt with both too,, Ok I pretty much love all bows,,