I used to use my OB-1 to break and I ended up popping a tip off. It happened in a poorly lit bar and I couldnt find the tip anywhere, and since the carbon fiber pad went with it I ended up with an issue.
No one around here had the pads, so I sent it to OB cues for repair. It cost a fair bit to ship and UPS ended up losing it. Eventually I got a partial refund and the guys at OB-1 sent me a new one and were absolutely awesome about the whole thing.
The shaft itself held up perfectly, and I have never had a problem since. So from my experience, if you have access to someone who can repair a tip/pad just in case, I would say you have nothing to worry about. Since I don't, I dont use it to break anymore. If you ever do have issues, let me say again, Royce and co. are first rate with their customer service.