My New Year's resolution (well, one of them) is also to restrain myself from starting my seeds under lights too early. I go by the seed-package recommendation that says for example "start 4-6 weeks before last frost" and because I'm insecure I start by the earlier date and then often have large seedlings thronging my seed trays that I have to pot up 'way ahead of my possible plant-out date. Why do the seed-people give such a large range of timing?