I think you did a great job by trying a new technique on a plant they may be male in the end anyway. And it can survive most stress you dish out, so don't worry about that. Just keeping your thing see what works for you. I've found that unsexed plants are perfect for such experimentation being that even if all goes wrong with the plant, it may have torned male anyway. So unless your sure it's fem I say Top, FIM, SOG, or suppercrop away. Your learning and you have the best teacher(The Marijuana Plant itself) they'll tell you what they like and can handle.
So gL and Good Growing