Pruning????

If those are fastbud gorilla cookies autos I would not lollipop at all and prune in the last few weeks of flower or as the leaves die off either will work....I grew 5 of those recently and they liked being bent over but I started that early on in veg like 2nd week, also they did well with about 1/3 of the amount of nutrients the labels actually state to use with alot of water those girls where thirsty and it took them longer to grow then what the info on them says. That is just a general time they give you on the breeders sites as far as time is concerned for growth, they are plants and will grow as they please.