The best time to cut wood is whenever you can cut it. Winter-cut locust is actually not hard to get the bark off of like hickory or HHB can be. Locust is really bad to check, so I like to dry it with the bark on. I can get away with that on locust (the only bugs that attack locust here are locust borere, and they only get in the tree while it is still alive, not after it's cut,) when the bugs will riddle most whitewoods stored with the bark still on.