Hi 2water
Lol you guys are all so funny
We aren't manipulating the light schedule to 12/12 on the seedlings (which very consistantly showed sex at 28-32 days) or screwing with the plant.
Indica's possibly, sativa's which is what I mainly grow, no.
Think about it.
Lets start with sativas.... They are from equatorial regions and they are from regions where the natural light schedule is 12 hr days. When seeds ripen they fall to the ground, sprout at 12/12, and it is what it is. Weed grows year round.
Indicas live in the north (hemps too) where the days get very long but the seeds are frozen still on the plant when early winter rolls in fast. Come spring the seeds thaw and sprout at about 12 hours a day but getting longer.
Then we come along and exploit the plant with nutrient indulgence and light manipulation to the point that letting it go back to 12 hour days for sexing is worthy of a discussion as to whether or not you are harming the plant.
The trick is keeping seedlings alive and healthy in a solo cup for 30 days.
Revegging is very different. The plant has activated death hormones and then we light manipulate it to change the plant back to presex mode. Even though the reveg won't change sex its still forced back into juvenile mode which stops death. Vegetative mode.
If you get 3 bladed leaves, and you will, feed the plant a heavy veg diet and raise humidity to 60. 3 blades (other than the duck-foot mutation) means the plant isn't eating properly. Most reveg's are done in flowering pots so you end up vegging a plant in flower soil. Feed it and give it veg teas and myco and the blades will increase.