Is ok to switch to flowering when....

I just topped(cut the top of) my plant and im realizing i dont have very much room my plants are a month old. the tallest(G-13) one is getting closer than 24 inches from the light. My G-13 is showing brown edges which is only on the leaves closest to the light(600hps). Im going to use bush master to keep them low and maybe some stress training. is it too early to flower and will the pruning effect it????

iam not complety sure but i would like to know to so people help out this dude and i.....oh yeah iam high

Hey man, as for your problem you could Low Stress Train them or you could also use a screen of green seach that it might work a bit better...No its not too early to flower maybe a week at tops but be sure to do all you pruning and trimming Before you flower
peace mang

cool that does makes sense to prune first thanks and i was thinkin about LST and i have this bushmaster shit its suposed to be the shiznit but very easy to over do.