Caz,
You keep banging on about the fact that the BOI with two experienced Chinook pilots concluded that the "forecast" in the Mull area would have allowed a "safe" climb to SALT. The critical word is "forecast". From your own experience, you know that "forecast" and "actual" often bear little relationship to each other. Like you, the BOI are speculating the "most likely" conditions of the time. Opinion of "actual" conditions vary between those at the lighthouse and Mr Holbrook on his boat. Whether or not the crew could have executed a "safe" climb to SALT is pure speculation.