I would agree that a qso on slow morse could take a few hours during a
session and that would be acceptable but to call back next day with a reply
is stupid and not credible.

I can think of a number of military systems that operate on this basis. Are you
suggesting that the stations are not in communication?

The next suggestion by some will be a week long qso!!!!!!!!!!!!!!!! This is
hardly state of the art communications and puts the clock back, dont suppose
it ever took anyone 24 hours plus to have a two way contact even druing the
pioneering days!!!!!!!!

Depends what you mean by pioneering. I would have thought that this low
power LF work was pioneering.

Stewart G3YSX