I note that your seedlings are a bit spindly and wonder whether placing the lights closer would help. I used fluorescent lights and would cover the entire light with a big sheet of plastic to keep the heat in.
I've had Sungold in my garden and it grows quite tall. My plant had so many tomatoes that many fell to the ground.
The following year a few plants sprouted so I let them grow and they were Sungolds.
Ordinarily there's a 50-50 chance that a hybrid will grow new plants and stay true to its hybrid traits, but the ones that came up did.
The tomatoes on these plants are delicious and I've never seen a plant produce so many.
However, they can be dried and there are many recipes that use fresh cherry tomatoes to make a very delicious sauce for pasta.
I note you live farther north, and I was located in southern MA, so possibly this slight difference in heat zones may make a difference in the time when they sprout by themselves in a garden.
