I have a reason. I'm hoping to veg a lady out for say 3 months or so under glr and was thinking about popping a couple of small pot autos alongside. Don't wanna waste good seeds if it won't work tho....
I doubt it will change the flowering cycle. Autos are crossed with cannabis rudarelis which grows in norther climates where grow times are short. Running a gas lantern cycle plays right into the auto flowering cycle. If you run autos at 12/12, 18/6 or 24/0 it doesn't make much differance in the maturity time. If you run a gas lantern cycle with a photo plant you are pushing the limits and it can still flip on you. Just run your lights 18/6 and do all of them together. If you top, train and fim the photo plant you can hold it back for 3 months...maybe.