Love that book. ..no wonder why its in my signature.
In my veg room I use t5's with grow bulbs on the side and a 400w MH and also a 400w HPS right next to it.
Generally I go with adding some mid or high P nutes about 1/2 way though my desired veg. I would say about 60% sex and if not I kick up the P to full nutes a week before take'n to bloom. Any remaining unsexed plants usually show by 2 weeks in bloom.
I find that some strains cant be cloned (many if not all auto flowers cant be cloned (at this time maybe genetics can change that in time?)), while other strains can be grown early in flower with other types able to be cloned way into flower.
Just my
from experience and from what I have read. I advise a good grow book as a 1st resource.