X-pole maximum height

Hello polers! I have an emergency question! Has anyone used an Xpole Xpert exceeding the maximum height without the ceiling fix? I need to use mine on a ceiling that measures 11 feet and 10 inches and, unfortunately I don't have the option of placing screws on the ceiling.. Is that too dangerous? It will be used by one person at a time on spinning mode.. Should I go for it? The other problem is that I don't have enough time to order longer extensions, so I will be borrowing two extensions of 500mm and two of 200mm, I don't have longer ones available... Do you think I will end up flying out the window?? 😉