LZ, it's not just Oz and UK pilots that disagree with you. Remember the "Just Helicopters" forum? Most of the contributors to that are from North America, and they told you where to go with your theories in no uncertain terms, to the point that you vowed to stop posting. Virtually the next day you popped up on Pprune and started all over again. You got the same reaction, only with a lot less vitriol.