This is an interesting Post, which may offer you some insight into something. Read this post by 'Jocam9', who had a bit of a group of back patters etc. He was obviously someone professional who had substantial enough reason to say this (and im not suggesting it was a good or bad reason, but he went out of his way as a Pro for some reason). See about the 3rd post down the screen, where Jocam9 mentions 'you can see our research at oilers.com: