Attended Lavenham, well organised, very safe
There were plenty of staff from the time one entered the car park, where your name was checked against the list, a number placed under the screen wiper, there were then staff directing us into a particular parking space. Everyone had to wait in their car until called (this was the only hitch - I was in the car for an hour) then it was smooth and quick, with space to sit for the required 15 minutes and then directed out of a different door.