min vis
I have read this thread with interest, I'm hoping to start my pplh in the new year, and knowing the weather here in the UK especially during the colder months, visibilty has concerned me, having read the amount of problems newbie's have.
I would have thought, soon after taking off, if your unhappy with the vis , turn back, or if it worsens during a flight, LAND.
Better to be safe, than dead !