was thinking that I could start the photos outdoors or put them out at 2-3 weeks of 16/8 without much effect. Wouldn’t a photo seed started outdoors sense the increasing length of day and remain in veg growth?
To a certain point yes. Some of the earlier daylight flowering plants though could flip into preflower if there is not enough sufficient total daylight regardless of the increasing regime. Out of your strain choices(the ones i have grown) i bet the green poison would preflower too early for sure, maybe even the durban.(the one i did flipped into flower around 14.5 hours iirc). Not sure on the rest of the strains you have. I would be looking closely at breeders quoted outdoor finish times(which relates to short daylight flowering and long flowering cycles) and choosing strains that will finish in late november and december.
I would certainly be trying to find plants that flower with really low daylight hours to maximize the veg period. Time to get tropical!! Basically all of the strains i cannot grow in my northern climate!! (i am really kind of envious to be honest!! )