allways thought auto didn't like 12/12
No, as in you run a regular seeds 12/12 from the get go. Auto's have their uses outdoors, but indoors, they serve no purpose. The general reasons given for growing them indoors is that they take a shorter time to finish, and they are smaller. The truth being that a regular plant grown 12/12 from seed will finish maybe a week after an auto might be finished (depending on type naturally, sativa plant will of course take longer) you can keep a plant any size you want, and to then one-up auto's you have an insane variety of genetics to buy and grow and they require a lot less money to grow based on 12 hours of light instead of 20. I don't want to come off sounding like an auto hater, but i've just never been given a valid reason for growing an auto indoors other than a failed understanding of growing annabis which for new growers can be understandable.
Del has a really good thread going with regard to growing regular plants with nothing but 12/12 which can be found here
https://www.rollitup.org/indoor-growing/416589-12-12-seed-thread.html definately something worth reading about. For me personally, simply the ability to clone and the vast range of genetics available at the attitude etc far trumps anything the autos might be able to offer.