RpR said:
With those large opening cages, I have home made with much smaller opening and the semi-worthless cone shaped ones, while planting that close together how do you stop it from becoming a tangled jungle.
Mine are minimum twice as far apart and they still go sideways, even through the smaller opening, some openings are to small for me to put my fist through, and are doing their best to goose other tomatoes, or it seems any other plant near.by. 
At my planting distance when I , for good or not good, reasons did not pay attention to them for sometimes weeks, while even days in weather like this is too long, it becomes one huge massive green mat where you do not not know what branch belong to which plant and the weakest plant truly suffer.
I am not speaking of spindly little branches the size of a woman's pinky finger, these are the size of a man's finger. 
I went out today to tie and stake up the branches with wander lust.
I have almost a half dozen volunteers, all looking good but as they are behind those planted I do not know if they will have a long life as I can now see my garden crowding was a major dweeb move with the garden doing as well as it is this year.
Last year I left my squash and mustard plants pretty much go on a unlimited walkabout but those two are in a different league than tomatoes, onions, chiles, corn tomatillos, carrots etc. all about to engage in not in my hood warfare. 
Addendum:
One of the branches with wanderlust had already set root in the ground inside the cage of another tomato it was goosing.
The two large cages with the big openings there are some of my Texas Tomato Cages. They really do work well. But even as big as they are those Brandwines will grow way taller. Maybe like 8 feet. Some of those heirlooms can get massive.
Many of my other tomato cages are those much smaller green plastic coated triangle things.
