Vufine Hat Mount

I was hoping this would work. The problem is the weight of the device. Let's start there. The device is awesome, however, the weight of it makes all the glasses I have tried to almost go lopsided on your face. You have that feeling that if you move, your glasses will be pulled off.So when I saw this device that goes on the hat, I thought, hey they solved the problem. The part that clips to the hat is awesome! It stays perfect! However, the ball joint that is on the top, is not tight enough. So as soon as you adjust this device, it falls 1/2 inch so you can no longer see the monitor and you have to readjust it every 5 seconds or you can't use it. I tried rubber bands to hold it in place, but they don't work.If they had just got the ball joint more stiff with friction it would be perfect. However, it is not useable the way they have designed this.I hope this review will help someone avoid the time I have spend on this.