Nice journal Mr Baggins, and those nodes are tight, the flowers are gonna join up (big fatty's) --- gonna be the stink!!
Reading through your journal I noticed a couple of things. I used plagrond before and I really liked it (the Bloom). The next time I went back to my growshop they didn't have any so I got the Bio Nova Growth Supermix, and I had the PK 13 + 14 BN as well. So next grow I started adding the 13+14 at week 1 flowering, 1/5 strength, then 1/10 next week and so on until I get to 1.25ml / litre. Done it religously this time around as well, the girls seemed to love it.
Natcho this is only my opinion, but I feed them week 1 of flowering, only half dose, but after that pretty much start cranking it up. Now perhaps the Headband being a sturdy bird means you can throw extra fert at them...but that's what I have done and been more than happy with it.
So sitting back and sub'd in. DST