Chastity and orgasm denial discussion

I picked up a CB6000 not long ago and ran into the same issue mentioned here: check out this community page.

Essentially, the cage’s two halves separate just enough to cause unusual pinching that leads to sharp pain.

I reached out to the maker, who sent me a replacement unit. Yet, after some teasing from my erection, the new one split too—this time completely falling apart.

I tried again with another manufacturer send-out (that makes three cages total), but the same issue occurred once more.

From what I understand, these are meant to handle this sort of stress (meaning lots of pressure as the penis tries to become erect).

Am I overlooking something or doing it wrong?