I’ve tried locust that looks like that with mixed results, there is a lot of early growth there for black locust. But still a good probablity of getting a good shooter. I agree with M2A, get to the first solid looking ring, leave it as wide as you can, trap the back, heat treat the belly well and maybe even silk or rawhide back it. With black locust I’ve gone up to 2” wide for a 50# bow and they still shoot well, so you can get that wide, I would.
Kyle