I have hallucinated on demand many times of the same object, I know it can be replicated.
That's nice. That's not what is meant by "replicated" though. Get 5 others to hallucinate the exact same thing while being in separate environments away from each other, and maybe someone somewhere will give a shit.
I can't let doubt bring me down if I'm going to fly. I know what's true. And no, it won't be off a roof but on a stage with many people watching.
Easy enough. Just have to fall, and get distracted by something else so much that you miss the ground.
Or how about my friend who has floated while on mushrooms? Several people witnessed the event. Would you give a shit then? How about if it was repeated in front of many people?
Do you really need proof or can you just have faith I may know what I'm talking about?