TC is this a typo?

"Indoors is the same for different reasons. The light cannot penetrate more than a foot or two. So flower when plants are a foot tall. If you wait longer because you want bigger yields, you will get smaller yields and wait longer for them."

I have two plants under 450W of CFL in a small closet.
They are in vegatative state doing very well (hope they are females
They were born on Nov 10th 2005. Grown from seed in soil.
They are each 20 inches tall. Not getting much taller but branching nicely.
I was going to give them at least another month in vegatative growth before changing light cycle. Are you saying I should go ahead and change already?
Sure would be nice to find out if they are female since as far as I understand you cant tell until you start them flowering.

Whats your suggestion flower now or wait longer? I was hoping to get them to three feet at least.

Thanks