Can I LST and start flowering at the same timeI hear ya, I had the same problem, I would go ahead and flower em, you can LST the taller ones and drop your light down, that will help you get a bit denser buds. Do you have good odor reduction and ventilation? Do you know your temps and humidity? All in all from the pics you look pretty good, i'm sure if you were having any major problems a guru from this site would let ya know, there pretty good here learned a LOT!