I don’t know if anyone saw Mark wild man’s recent YouTube video with the ballerina. He demoed a new level of complexity with clubs by balancing on a bosu ball. I had to give it a go. It certainly exposed an imbalance on my left side. I used a 20lb delta club. I had a good Takeaway from it. It shows you how to use your whole body to control the movement rather than just your arm or your shoulder. Great feedback in my core muscles/stabilizers. I see it as adding complexity and changing the stimulus.