Bon4 discussion

Has anyone with a larger member found success using the Bon4? My girlfriend and I have experimented with chastity wearing a Stallion Guard or Gates of Hell style contraption. She loved the idea but was disappointed that it physically hurt me when aroused. If she were to do it again, it would need to be with a rubbery silicone device that has some give so she doesn’t worry about pain and removal; she could just leave it on continuously. She does not want a plastic device like the Curve or CB series. I am around 7 inches erect and can only use magnum condoms due to my girth. Would I fit into it? I don’t mind discomfort, I just do not want to experience pain that necessitates removal. From what I understand about how this device works, the ring stretches enough to go over the cock and balls, but the plastic strap keeps it tight, preventing stretching and stopping removal? The device is very appealing because it looks larger than the Birdlock, but I would hate wasting money on an expensive piece that doesn’t work. The Stallion Guard was at least affordable and taught us we’d want to try chastity play more, though all we can really use it for now is short-term sessions.