I have the same problem with the balls coming loose when adjusting the angle. Always annoys me. I keep forgetting to put some lock tight though. Seems like an easy fix and other than that I'm happy. I do have the small one with a snoot on the way too
Thanks, funny you mention that i am diving tomorrow and and modifying the way it secures. At the moment I have two snap bolts that i secure to two D rings on my wing. But with floats the camera can get in the way. Tomorrow I am attaching a small D ring to the top float in the center and then use a double ender then hopefully I clip it off on my crotch strop to stop it floating up. It will be secured in three places.