Reversed photoperiods usually jizz between 21 to 28 days, but I have had one go over 40 days. Landrace sativas may take longer. For MUCH better success rate next time, it's best to reverse the *entire* plant not just part of the plant. Once sprayed with STS the entire plant is not usable, and should be discarded. The only exception is if the plant * self* pollinates itself, in which case only the seeds are usable - but the remaining plant should still all be discarded. Drop me a p.m. if you need anymore help with reversal. NOTE: I'm only a backyard pollen chucker and don't identify as a breeder. In my opinion the term breeder is far too widely used in Aus. Due to our prohibition environment in Aus there's very few people that have sufficient facilities for a breeding program.