ok luda, same question..... we all know that veg and flower are different things, and that flower is triggered by diminishing light hours....
but then, these guys aren't talking about veg hour lighting. they're talking about less than 14 hours of daylight (which almost always induces flowering). in some places plants don't get a full 12 hours of light.
so, you're kinda wrong here. different flowering schedules DO work. however, you won't flower a plant in a veg room unless it's mtf or another containing ruderalis.
so how do you figure that 11/13 won't work?