BlackBerry

It's all about light my friend. The more light those side branchs get wile developing makes them grow larger. If your growing in a small space with a small light like 100w or something it doesn't really give you any light hitting the plant from the sides when you grow in a large tent with a larger light each plant is getting lights hitting it from all directions instead of directly about. Maybe next time when the plant is still small prop something under one side the pot and have the plant sit tilted so the side the ppant gets more light and switch sides every few days. Also when plant is smaller you can cut the 30% tips off the fan leaves letting more light get down

Autos have a short period b4 they flower so you have to make sure not to stunt their growth in any way as a seedling or they turn out small also could of just got an auto that doesn't grow very big. I suggest you get some photo seeds and grow they for about 40 to 45 days then flip them you will get a nice medium size plant way more bud sites than that Take it as a lesson good luck you will fig it put don't

next time use feminized photoperiods, you have more control since you can decide how long to keep them vegetatively with 18 hours of light and you can send them into flowering simply by moving the timer to 12/12