Nige, well for one I dont have a chip on my shoulder re you owning helicopter(s) The saying goes "how do you make a small fortune in helicopters??? start of witha large fortune" I am happy to be crew and thats as far as I want to go, I guess I am therefore in a better position than yourself as I don't have finacial pressure to fly when I am told by those that KNOW not to
Sadly the Ex-Spurts like yourself will ignore all the warnings and fly only because you havea commercial interest to do so. I really worry about all this as you won't be convinced until your end up with a large bill for ash damaged engine or worse still the loss of the whole aircrfat God forbid.
Then I guess you will be moaning about not getting adequate information on the dangers and look for someone to blame and claim.....