u/kid_a_____

I have a Model 2 with JT6

I'd like to know if anyone else has this problem, or if I'm doing something wrong. It doesn't happen when I'm playing at home sitting down, but it does when I'm playing in a recital It's certain that at some point when I lower the bar or just push it down a little unintentionally loosens, comes off and falls to the ground.

Is it possible to make any minor modifications? The bridge works great and I wasn't planning on changing it at the moment; I just have this small problem.