Be better if it made a noise when off line
Mine does not stay tight either. Need replacement
Works fine for drills for straight takeaways. I don’t use it for full swings to hit balls. Why would you.
The device works well without hitting balls, when hitting it does not stay tight, I sent them a note that it needs lock washers. They did send a replacement right away.
Does work great with my irons,but struggle with with driver and fairway woods