critik, looking good bro. Not to chime in after the fact, but did u ever figure out the curling leaves on the bottom. As a rule of thumb, when a leaf curls under it is usually not getting enough of something or it overwatered. If the leaf curls upward it usually has too much of something. also, the purple stems could be a sign of some sort of def. as well. Just my 2 cents. I've seen both of these issues in past grows. Might wanna bump up your nutes just a little and see what happens. Old growth will still stay purple but new growth will be normal. hope this helps, and if not then just throw it out the door and keep going. both are looking good at this point. + rep bro