When you turn the lights too 12/12 they will stretch alot and the leaves will continue to get bigger. I would switch the lights now but they may take longer than 10 days to reveal sex and grow buds. If you want to use those setups you need two more setups, possibly more. With those types of lights they might be too big to have a good harvest already. If you could get about 20 of those you could probably do really good.