Hi Higgs,
Every year I have tried to grow full sized tomatoes (Cherokee purple), it has been a bust. Last year was my most successful at 2 and 1/2 tomatoes.
This year the nursery guy told me to try his "box car" heirlooms. I like the guy, so I bought "one". So far it has lots of flowers.
I have 10 of Cherries (3 varieties) and they are covered with tons of green tomatoes. (I think they are mocking me.)
I have a black thumb and have not yet figured out why I am so jinxed with full sized tomatoes. Other do fine with them. So, 1) I feel your pain, and 2) please let us know if you ever figure it out.
-T
My wife loved cherry tomatoes and we both eat them like candy. Kind of what happens when the produce tastes good. Maybe you should try some cherries?