You can't really say that he's missing out due to his cage as he would slip out in the position anyway all the time. The cage is the simple and easy solution for him. He does not need to be ashamed of being a bad fuck anymore.
Found sweet spot for Ternence.net version of urethral tether. Longer tube rubbed in and out too much. Removed few mm’s so inside ring doesn’t tug on urethra unless trying to pull penis out back. Lock holds penis in ball-trap cage. Flip up lock keeps