Last year my tomatoes were a disappointment so early this spring I added some good organic material and low analysis fertilizer to the bed. They are now growing vigorously and are filled with fruit. The first are ripening and I had a tomato sandwich for breakfast. Now to my question. The plants are growing in cages and are 4-7 feet tall. They continue to send out lots of new growth. Would it be good to trim some of this new growth back or should I just let the plants continue to get bigger. Does the new growth help to feed the smaller developing tomatoes? Opinions please. What do you do?