Going off previous comment but more detailed. Topping autos will not only stresss them out but will most likely cause them to flower which is the last thing you want from a plant your size right now. Use lst to even out your canopy instead of any kind of hard stress training(topping, super cropping, hard super cropping,ect.)
On another note those pistols you zoomed on don’t technically signify flower could and likely
Is pre sex if your plant is that size.
Best of luck.💚✌️🏼