So jealous on you americans and your osage! Like RyanR said, I would never stop cutting it if it would grow here. Luckily I have the almost the same looking alternative haha. Black locust around here is orange-brown in color, very similar to osage that darkened over time. Also you can practice ring chasing on it. I will begin tillering of one BL flatbow next week so you'll see how it looks very similar.