PJ, I am a clean freak - at least my kids would say so - and I am seriously impressed by your cab; it flippin' ROCKS! I am glad to see your lil' ladies flourishing so well. It seems like you have everything under control - good lighting, good ventilation, good air movement, good soil, good nutes, soon to be diagnosed good water, and last but not least good plants (I've seen plenty of White Widows on here, and I can't wait to get an indoor setup so I can start up more variety to include some WWs!).

The only thing I see that may help a bit with the runt is to replant it so its head sticks above the rim of the pot. I had an issue with some peppers I'm growing - the stagnant air below the rim of the pot was stunting their growth. As soon as I added more soil to their pot to boost them above the rim, they really took off. Your fan(s) may alleviate this issue, but I thought I'd comment on it. The best piece of advice I can give you is to relax and enjoy the grow; your plants look amazing, and you will have a great deal of fun with them and your amazing cab.

I'm looking forward to following your WWs on to harvest! Be good out there!