Introductions discussion

I use a CB6000 but I’ve recently found a way to masturbate whilst wearing it. All I do is pull my foreskin through the top and pull it. It takes quite a long time to cum, but it works. I also found that, since I had been in chastity for over a week, the orgasm was quite powerful. I was shocked when, later, because my cock had shrunk post orgasm, it was possible for me to free it from its cage. I was very disappointed because the whole point for me is that it should be impossible to have an orgasm without mistress’s permission. Does anyone have any advice on what device I should explore?