That may be true; I don't know actually. With the seedlings you have going already, I would at least keep them under whatever light schedule you are already on until they become sexually mature, since changes are a source of potential stress.
If you plan to continue working with the same strain, it might be worth doing a side-by-side comparison with a few identical clones off the same mom, half on 24-0 and half on 18-6, to see how each group reacts, and take the result that you believe to be better and run like that in the future.

__________________
"Careful what you carry- 'cause the Man is wise- you are still an outlaw in their eyes" -Steely Dan
"Multiple pieces of anecdotal evidence do not equal scientific fact." -Rhizome
"If the Queen Bee ain't happy... the hive isn't happy!"-Dutch Pimp
http://boards.cannabis.com/basic-gro...e-harvest.html<-It's a grow guide! Enjoy!
http://boards.cannabis.com/plant-pro...hy-how-do.html <- all the boring stuff about soil chemistry you never wanted to know
http://boards.cannabis.com/grow-log/...ml#post1837597 <-how to make canna caramels
http://boards.cannabis.com/grow-log/...ml#post1820481 <-illustrated cloning guide permalink
Contacting Her Dankness: stinkyattic at hushm4il-please use the same discretion you do on the boards, thanks.
I don't claim to know the first thing about growing anything; hell, I can't make a Chia pet sprout.