im just finishing up a grow with 10x fem seeds. the only one that went hermi on me was one that had its light schedule fucked with a bit while it was in the bathroom draining from a flush. lights were off in there for about 45 min, and ive had some other things stress all the plants, over head light stayed on for 2 hours extra, after hps went off. twice.. as well as massive ph fluctations, what led to nute lockout. these fem seeds were not even from a seed bank. i had fem go hermi from light leaks, it selfed, and i used seeds from it.