I am currently on a grow as I type this and my plants were on a 24/0 light schedule and I switched to 18/6. While my plants were in 24/0 they were growing slowly and seemed to just stop growing. Shortly after switching to 18/6 light schedule my plants almost doubled in size. Im not saying they grew bigger because I switched but it seems that way. Here have a look. http://boards.cannabis.com/grow-log/...s-t5-grow.html

Good luck with your grow and with what ever light schedule that you do decide to go with. Many growers have had great success with both light schedules.