I would say you are definitely due to switch the lights, most people flip when about 75% of the scrog is filled up to allow for the stretch. Awesome job on the plants too! Its nice to see someone with all the proper equipment and preperation, it really shows. Nothing against ghetto grows but I really like well planned out set ups. I wish i had planned mine out as well lol but when I do ever get back to growing I'm definitely upgrading the ventilation and lighting systems in my room.
Also to answer a question from a few pages back, if your ballast is a lumatek then the sl250 and sl400 means super lumens, basically it just gives a 10% boost to your lighting. I have it on my ballast but I never use it. Seems like its just putting extra watts into your bulb which makes me think it would shorten the life of it