The Four O'Clocks are germinating quickly on the seedling mat. I don't think it's necessary to pre-sprout them although maybe the overnight soak help was helpful.
The Extreme Bush tomatoes germinated but not the eggplants, so far.
The Salpiglossis are starting to grow. The seeds were tiny, like dust, so I sprinkled them on top of the seed starting medium and pressed them into the soil. Supposedly they require light so I had them in the sunroom instead of on the warming mat.