It sounds like an interesting idea, and it will be fun to see how things progress. However I wont be able to participate (this season anyway). I just wont be growing any tomatoes this year. Right now all my time and money is being spent on the greenhouse venture. I have some mini sweet pepper seeds
sprouted, but I wont be growing them in hydro either. It's getting to be summer, and with daytime temps regularly reaching the mid 90's already, I wont be able to keep the nutrient
solution cool without using a geothermal (in ground) reservoir. With all the space taken up by the greenhouse, as well as the three 275 gallon reservoirs for it, there just isn't anywhere for me place another one. At least not now. But it will be fun to watch the competition.