well thats what i was told to do is switch it to 12/12 to show sex, as i tried to let my others go and after 9 weeks in veg still no show of sex. so i was told to go 12/12 to show, and also is it not a common method to go 12/12 to show sex as i see alot of people give that advice on here i myself would rather have not done it that way but i don't want to wait 9+ weeks to show sex either. and i did'nt write off the plant i said what i did and asked if that was the cause simple enough.