Cb6000 Splitting and Pinching Troubles

Hi there, I recently purchased a cb6000. It started to crack during an intense night of teasing. I sent it back and received a replacement tube. While the new one has been performing well, last night my wife teased me quite vigorously, causing a nasty pinching sensation on top of my partially erect penis. A similar issue occurred inside the tube along the underside. I know that finding it difficult to get fully erect while wearing a cage is typically uncomfortable, but this pinching feels like the device is stretching open enough to trap my skin, which seems unusual for such an occurrence. Any advice would be appreciated. Should I send this one back and try another? Would looking into the 6000s help by limiting erection more effectively? Or should I upgrade to a metal model? I’d love to hear what you think.

The cracking problem is quite common with the CBxxxx series. If your current model is a standard 6000 and you're experiencing this, I suspect it would happen with the shorter version too. Before purchasing yet another device, put your finger inside the tube to feel for an internal seam ridge. Gently run along it. Even if the ridge feels minor under light touch, firm pressure from an erect cock can make it feel much larger. Check both horizontally and vertically. Sometimes misalignment creates a sharper edge. If you locate one, take something like Scotch-Brite pad inside the tube to smooth it out. Hold the abrasive side against your fingertip and rub that specific ridge area repeatedly until it feels smoother. If you decide another model is necessary afterward, I suggest metal construction. While good quality units cost roughly double, they offer significantly better performance (about 100 times more durable). The real challenge then becomes choosing which one suits you best. If a metal device can still split under pressure, that person truly has superhuman durability.

Is it an AI Enterprise product or from another manufacturer? I own a 3000 and haven't had tube issues despite working through three base rings due to constant wear. Other forums suggest that wearing out the cheaper versions is normal.

No, it's definitely an authentic AI unit.

My first CD was a CB3000 that split relatively quickly. After several repair attempts failed, I switched to a CB6000s bought from and experienced no issues for nearly two years. It might just have been good manufacturing luck on my day. I've since transitioned to metal models. There is absolutely no risk of breakage with these. As Locked by LRC mentioned, if you are confident in your sizing calculations and willing to pay the premium price, metal construction is definitely the superior choice.