Beef Tomatoes?

As long as you water and feed well you should be ok. I find that the big tom plants don't make as many fruit as the small ones , just that the ones that do grow are a lot bigger .So i suppose it's swings and roundabouts really
You do have to be careful how you support them though cos the trusses can be very heavy

I grew beef toms a couple of years ago, and I also found that not every one of the beef toms grow to a big size, I had about 5 (if that) that were large, but the others were of the same size as normal (I had about 5 plants).  So I won't be bothering again.