Shy,
Yes, well we'll just have to disagree on the definition of "most helicopter pilots" and "most helicopters". Certainly most Chinook pilots at the time of the accident would have.
Its a fact that the Mk 2 didn't have a clearance below +4 deg true at the time of the accident. I have tried to confine my comments to the alternatives on inadvertently entering IMC in the context of what was known about the Mk 1's clearance - at least what would have been my considerations.