Jim I'm not sure if it's an oregon. Oregon torts that I've seen and had always had a smooth "deep water" look to it. Similar to a granulosa but grows like a stag. I think yours looks closer to a cali tort or some other type of tort. I have mariculture torts that look just like cali torts
Anything is possible, and this could be an oregon looking a little different in your reef. Where did you originally get it?
One more thing, I never saw a white growth tip on an Oregon tort, even the fastest growing ones. I see a white growth tip on yours which leads me to believe it may not be an oregon.