I think it a pity that threads like this are always hijacked by people who feel the need to express views on matters that they had no part in and which took place when ideas, methods, knowledge and people were very different from anything they can have experienced.
I have no need to join in so will just say that, had DH not called the Comet 4 a Comet, we would have been accused of trying to hide the fact that it was one.