Lillooet Landrace by Pristine First grow

Please correct my if I'm wrong but I believe I see the first signs of pistils in the picture above. It seems all 4 plants have developed these little white hairs towards the top of each plant. From what I've been able to find, this seed is an autoflower (I could be wrong but this is what I've gathered from other journals who used the same seeds), so I don't know if I should be adjusting the light hours down to 12/12 or keep them at 18/6. I'd love to hear some advice from more experienced growers if possible (this is my first grow). I'm also curious to know how much longer of a "veg" stage I have left with these girls as they haven't quite grown to the size I was hoping for. Day 40: Lower branches are starting to even out in height and are also filling in the empty space in the pots. I'll LST those branches to more efficiently use up the space when they get long enough. I started LST on the 2 plants on the left 3 days earlier than the other 2 and they clearly look more developed. It's pretty cool to see that difference first hand.