I think... If you reverse pollinate a plant (have a female plant grow male flowers and pollinate itself with it's inherently female pollen) and you grow the S1 seeds, you will have a plant that will be 25% likely to dominantly display the genetics of the pollinated female, 25% of the male used to grow the pollinated female, and 50% likelihood of a mix. The aA, AA, aa thing mentioned before.. I don't know if reversed seeds are F2 or S1; but I've always heard of them being called F2's... although, if you were to reverse Blue Mystic (which is a commercial F2) I'd think you'd have an F3 (or an S2); I don't know; I'm def not the best with S's and F's...