Yes, you should be right. Doesn't matter if you want to give it half an hour extra dark or light. As long as the dark period is dark you should be fine. Keep the schedule consistent though. Timers are pretty cheap too.
Sorry that answer was directed at smokeysmokey9.
They may have a disposition to hermi, but you never know if you don't try eh? I actually still have a couple of seeds from a plant that had late bananas from light leaks, but I haven't planted them so I can't say for sure..
They're you go. Do you think every seed would be hermi?
Kill it. Males usually show sex first. If you leave the plants in veg mode long enough they should show pre-flowers.
