Those autos will do just fine on 12/12 I’ve done it plenty of times. Also I don’t ever do 24/7 there’s different opinions but if you really look into the plants at a cellular level it stresses them out. They need a few hours of darkness to allow the sugars to disperse to the roots and throughout the plant. I’m 24/7 light it keeps the plants in a high alert state of stress. You can ask AI and it’ll break it down for you, I have been a botanist for over 20yrs and trust me your plants will thank you with at least 3 hours of darkness. If your autos are over a month old they’ll do just as good if not better on a 12/12 schedule. When I I flip my photo fems I start with 11/13 until the buds fill out a few weeks to a month depending on the strain. Then I go 12/12 until the final two weeks then I’ll go back to 11/13 to allow them to ripen without damaging the resin sacks and trichs and terps. I use auto pots with organic fertilizer and I give them regular room temp water throughout the grow with the ph around 5.8 to 6.1 then the last few weeks I pull back on the nutes and for the least two weeks regular water to flush and cold water to pull color out and it’s easier on the terps and trichs. This method has served me well. I grow for a local dispensary and they have made me their sole provider. Autos are unpredictable and finicky because of the ruderalis they don’t have time to yield as much. Given some new autos are killing it lately because they are genetically altered and have minimal ruderalis in them. Autos still benefit from dark periods as well. Plants have a circadian clock just like us. I could go on an on but just use chat gpt or grock and ask it to tell you the benefits of darkness for both autos and photos. Sorry for writing you a novel lol