End of the season picking...as soon as they start to turn pink, pick them and put them in a cardboard box with newspaper. I control the ripening by adding a banana or two to a box. I had tomatoes all the way to December and I'm in Upstate NY.
I’ll try that, I just put a well developed Cherokee Purple and well developed Solar Flare in the ground about a week ago to see what avoiding July and August will do for September and October, I have the early plantings of Early girl and Celebrity, the middle plantings (July 4th) of (all well-developed) a Cherokee, a Solar flare, and a Heatwave, and then these.