I said the UFC wasn't around when I was young. That is true. But I trained that way as long as it was safe and practical for me. I am also not demanding scientific studies- I am saying I'm not going to train IP unless there's more compelling evidence than people saying if you train long enough with somebody who really knows, you may be able to find some subtle benefit that really can't be evidenced.
This is a discussion forum where people offer their opinions and ask questions. Not a forum where everybody is required to agree with each other. If you don't like my version of the truth, you are free to disagree with me, and I don't mind at all. If you have taken IP for a spin and like it, please continue. My statements are not about your personal choices. They are about mine.
And again, there was and is no compelling evidence that training in Yoshinkan would benefit you either, not in the way that you phrased it in regards to IP. I'm asking you why you require a higher bar for IP?