Secondary question do you think autos are so touchy from nutes because they get less rest?I think running them under less light would end up resulting in stretchier plants with less flower production. Density would also be reduced...this is just going from what i have grown in reduced light outdoors.
I actually think the bigger question is why do we finish photoperiods under 12 hours when many of them trigger into flower at around 14 hours(some higher)....