18/6 is optimal........you will not achieve anything by going to 24/0.........except a bigger electricity bill and a freaked out plant.
All cannabis plants, autos included, NEED "sleep" during every 24 hour cycle for a correctly functioning metabolism.
A plant with a messed up metabolism will never grow to its full potential.
It will not finish faster at 24/0..........a plant can only grow so much during any 24 hour period and this growth tops out at about yhe 18 hour mark......this is a scientific fact, not ghetto science!
People who run 20/4 or 22/2 or 19/5 are kidding themselves, all they are doing is wasting electricity and paying higher bills for no benefit.
Don't do it!