Here are some pictures of some Early Girl F1 tomato fruits from a plant purchased at either Walmart or The Home Depot, this spring.
I zapped and saved the seeds, and put the fruit in the refrigerator. I used two zappers at once, the whole time. My Z4EX, and I think zapper #6 (30khz).
I think the plant has a very mild case of alternaria (that came with it from the store). It's a good plant, though. I know the zappers seem to have been able to take care of that disease in seeds in the past.
It's awesome to finally have replenished my supply of Early Girl F2 seeds.