The girls should be fine for a few more days, so you should be headed for a nice grow. But yes, as soon as you can start with the good nutes, do it. Start with no more than a third of the concentration suggested, and ramp it up slowly after the girls are well established. If you want to dial it tight, you can keep upping the concentration gradually until you see the first hint of nute burn, and then back off 10% or so. If you try to dial it tight, don't adjust further until the plants have had at least three days to respond. Patience, patience, one of the most important ingredients - a mantra that I still have to practice constantly. Sigh.
How about a journal? The blog option seems to work very nicely, and it is not as fussy as it seems before you dive in... It would allow us to keep track of how you are doing. Hint hint.
Good luck with it
@nard420, keep us posted, and don't hesitate to shoot us more questions.