i think it will make a fine bow,, how the bow is made and designed will usually have more effect on the cast than the ring count,,, I my self have not noticed much difference in ring count performance, and have been shooting self bows through a chrono for about 25 years and keeping records as well,,
If I have a piece with rings so thin its going to be difficult to follow,, I will pick that for sinew,,
if I have a nice piece like yours,, I will make a self bow or sinew back,,,,
my post crossed with Badger, so I will add,, at his level of of bow making and competition ,, I would not be surprised if there is a slight difference in ring count performance, that could make a difference,, in a competition,,
my bows are mostly for hunting,,and for my use ,, a slight difference in ring count performance is not an issue,,