Magnum Auto ...(possibly a photoperiod)

So myself and my very good experienced friend think this girl may be a photo... being that she's so far along and not showing signs of flowering I have taken the decision to flip her to 12/12 and see what happens. So far it's been 3 days since I changed over and haven't seen any changes yet but it is still too soon to be able to tell. I'm excited to see what happens and all in all this girl is going great. Growing a nice pace and happy continuing on with a light feed all whilst maintaining steady growth.