i still think your using the wrong terminology here roman ,Ok, i just looked up the New Guinea Semi-Autoflower. Yes i sayid it wrong, it only Autoflowers with a slight Roobound , but does it from start and EVEN with long photoperiods.
The rootbound needs to be only slight... and it does it in some phenos, would it finish a whole floweringcycle? i cant anwser that, but seemed to flower from the Start.
and still has a 17 week floweringphase..
an auto flowering plant flowers and will finish with long days ,
these sativas that show sex , or heavy pre flower are not doing that ,
they dont set flower properly and definitely dont finish in those long days,
im sure u are going to find its the same with the ones that show pre flowers with age ..