Nah, what he meant was does any light leak in to your plants when their lights go out. That can cause Hermie.
I'm not an expert on telling sex, but the pistols in both pics look the same to me. Unless you mean the bud site at the top of the 2nd pic, in which case I can't really see it too well. Ane the stem's kinda in the way.
In regard to Colas, I've seen plants with 2, 4, and more colas that look puny, and I've then them look like monsters. It will give you more weight if you discover the trick to making them into monsters.
To get 4 Colas you wait till you see the 6th true node, then you top it all the way down to the 2nd true node. You'll get 4 main stems & colas which should also give you more bud sites.
The technique used to get the multiple colas like the monster in the pic is called FIM, I'm personally trying this on my plants now, and I'm making sure they get all nutes, minor as well as major. (notice the nute burns in the pic of the monster) I think this may be the trick, bigger plants need more nutes. And I know first hand that minor nutes are important for max growth, my girls are still thanking me for their last feeding.
Here's a good link for the 4 cola technique
https://www.rollitup.org/advanced-marijuana-cultivation/151706-uncle-bens-topping-technique-get.html
Here's a good link for FIM
https://www.rollitup.org/advanced-marijuana-cultivation/200413-fimming-m-blaze-complete-how.html
Hope this helps you.