Hey there Ranger the photo period can be strain dependant as well, I like to use 10 or 11 on and 13 or 14 off, personally I think it makes them more desperate, and the phenol expression is different as well, I find mostly with an essential oil profile, and the initial stretch on a shorter light cycle is bigger as the plants try to reach for light. And the shorter light cycle will save energy over time.
Have you determined any appreciable difference in quantity or quality with the shorter schedules? My assumption is no, or you'd have shifted back.