Tomatoes is one of the few veggies I've winter sown here in my zone 7b. Our weather is too fluctuating and unpredictable for doing too much. Like yesterday - the temp started out at 19° and warmed up to a sunny 64°. This week the temps are predicted to reach into the 70's. That would probably prompt much to start sprouting if I had winter sown anything this year. But then later in the week it's going to drop back down to the 20's... up and down temps!
btw: Hammer, we have an entire forum dedicated to winter sowing where you will probably find the answers to all of your questions and much good advise.
https://garden.org/forums/view...