A very emotional post fadecdegraded - you seem to be suffering from the modern syndrome that one either has to be right or wrong about everything and just making a suggestion or discussing options or opinions isn't acceptable.
I have suggested answers to the OPs question - whether they are right, wrong or somewhere inbetween isn't for me to say - some of the graphs in Nick's linked document seem to suggest variations between 20 and 50 kts for a CH 53 but there is a lot of data in there and I don't have the time or inclination to digest it.