You need to remember Bluehue that most folks out here are not using Nitrogen when there plants are on 12/12. You make a good point - but photosynthesis happens at a much slower rate with no nitrogen present. Many of the fan leaves are rendered useless anyways. For the most part I agree with you though.

BTW I use some nitrogen right up until the end. Most all of my fan leaves remain somewhat green right up until harvest. good thread though I'm pretty new here and was not privy to past discussions on this subject.

Herbus