A SOG would make better sense than to try to SCROG an auto. As far as topping goes, most auto growers rarely top their autos. If they do, they usually recommend just once, and that's if the plant is super healthy. That's why when you mention multiple toppings, both my eyebrows were raised lol. Don't get me wrong, autos are great, but I prefer photos simply because I can make sure she's healthy before she flips. With an auto, she'll flip whether she's sick or not. And as we all know, you never want to flip a sick plant. The good thing is that you have plenty of autos to practice on. If I were you, I'd just continue to grow the remaining autos, but do a bit more research on them to make sure you grow them as an auto and not a photo. Then you'll be nice and ready to grow a photo and SCROG the hell out of her lol.