Chinook
ABinW.
Based on the evidence of the yachtsman (a trained researcher) that the a/c was below the low cloud base; and the evidence of the lighthouse keeper (a trained observer) and the walkers on the hill, that the hills were in cloud; and the technical evidence from the wreckage that the a/c had high forward speed, I have 100% confidence that the statement about low-level, high speed and IMC is correct. So let's have you answer a simple question; if the a/c was not at low level, where was it; if it was not flying at high speed, what was it doing; and if the hills were not in cloud then what were the conditions?
(This is becoming very repetative again and again and again, so no more from me)
With all good wishes. JP