7 weeks, very little growth

hey, this is my second grow after a very successful first grow. Decided to experiment with my light cycles on this grow and at first had the babys on 23:1 but i believe this has stunted their growth and 'fried' them out. It is 7 weeks into the grow now, the first 2 weeks the plants were growing great, weeks 3-6 very little happened with leaf formations and growth. I switched the plants onto 18:6 last week and they have started to grow again. The plants are at six inches right now with 4 different levels of leaves, just wondering whats the chance of making them male or not even budding?

The plant strains are big bang, super silver haze, lemon skunk and Hawaiian snow. All feminized seeds, really don't want to have to kill them .

You havent given them light poisoning yet so i'm pretty sure they won't hermie on you, as for male thats a hit or miss, but your chances for female are much higher as the seeds are feminized.
Now as for stunting you probably dwarfed them but thats ok, just feed them 1/4 strength nutes and let nature take its course, once you veg for a month you will see a whole lot of growth,
give it time and all will fix itself

Thanks, i was getting worried, don't think i could bring my self to killing them. Do you have any idea how much more time i should give them for flowering and vegging now as they have been stunted?

I'm going to veg mine for atleast 4/5 weeks, and then flower for atleast 8

That will give you the best results, but you should go on strain my grow is bagseed, Find out each time for each individual strain and do that, just cuz they are stunted doesnt mean you cant veg and flower for the same length.
I would at least
=D