auto's don't have a vegetive period, therefore they don't benefit from common practices used on photo-period plants like topping, etc, etc..
the best thing to do imvho is to put it in a big pot, and let it go au'natural..
no, don't top auto's, they don't benefit from it.. when you top a photo-period plant, you're able to veg it longer, in order to give it time to recover and grow two tops or however many in the place of the one you cut off..
if you cut off the top of an auto, it's more then likely going to start flowering soon, and won't have the time needed to recover and do what you want it to do by topping it..
Not really, like racer said it will yield what it yields.......one big(?) bud "oh natural" and prolly 2 half buds or less if you top it once....best advice is plant more in a SOG I'm gonna second that opinion.