For training in PCT and while recoverying natural test, you are on the right track. I might back the volume down a little. I would certainly still push myself and I would focus on handling the most weight I could in that time, but long, exhustive circuits are likely to cause some serious muscle trama. My suggestion would be that when you cycle, you don't use high amounts of gear to begin with. Keep the doses low. It does not require bodybuilding doses to improve performance. A cycle of something like 30mg Anavar will give you increased strength and endurance. You will perform better. The side effects will be low and weight gain will be mild, making it easy to continue working at a fast speed. A lot of what you read online about steroids is geared toward bodybuilding and maybe some powerlifting. But I would consider cross fit more of an athletic endeavor. This will require a different mind set than that of the guys that are using gear for cosmetic purposes.