Very strong growth, cut back on the remount of nutrients in the water to help with the spots on the leaves. I believe it will enter flower soon. Removed some of the spotted and yellowing leaves to help the plant recover.
Well since you can't have a magnifying to look at the trichomes, you can also judge by the pistils, when she's ready you'll notice that all pistils have turned orange and are beginning to go back into the bud.