ditto18/6 here only used 24/0 for two things....
-first two weeks of seedlings
-first week of cloning
........................
I do it the sameFrom seed or clone untill rooted I use 24 hour light. Once rooted and in larger pots I switch to 18/6. I don't know why and if there is any difference just have always done it this way, lol.
i know Ed says that anything other than 24/0 is a waste of time (but he also says MH is a waste of money too).Couldn't find the Cervantes article, but this is a pretty good thread on the subject. Has a link to a SoftSecret article by Ed Rosenthal on the subject.
Peace,
~Rock~
https://www.rollitup.org/indoor-growing/26599-18-24-hour-4-veg.html