Hi Ken,
Congratulations! Feels good, doesn't it!?!?! You should find out if your area has a "First Ripe Tomato Contest". We don't win anything for the Michigan contest, just the satisfaction of winning. Both John and I agree not to cut any stems off. Since they have flowers they are going to bear tomatoes. They are just doing their 'thing'.
We very seldom prune our tomatoes unless they become too unruly come the end of summer and need some 'wacking'. We have found that our plants give us more tomatoes and healthier ones if we don't prune. We had an experiment one summer and proved it.
We also see more sun scald on plants that are pruned.
Keep up the good work, you are on the right track. If you keep experimenting, years from now you will look back and be amazed how you have perfected your methods.
Diane