What should I do--need expert advice

I have a grow room set up of 5x5 and have 13- 3' 9wk.old girls. Growing in pro-mix w/ worm castings and osmocote. 400watt mh/hps and 400watts flourescent grow lights.
My question has to do with the most logical move for me to make at this time....
I see that I am totally out of space with these girls and they are beginning to crowd each other-- ( I would send pix. but camera is out for the time being).My question is---should I switch NOW to hps and flowering or would it make any sense for me to keep them veg. any longer?
Just need a few more logical brains on this one!

well i would have to say do it now since they are gonna double in size once they hit the flower stretching stage.

That is gonna get way over crowded! I've been battling the " too damn tall" problem in my room as well. I would cut those suckers down to about a foot tall, givem a few days, then flower. Lots of strains will even triple in size after turning them to 12/12. Do you have room for 13 nine footers?

thanks for the advice!! Next time I need to start alot fewer with the space I have available. Didn't realize I would have such success with these Black Widows! (not complaining of course!

u can do a scrog or super cropping the tops or LST man.