White Widow x Big Bud (coco)

My CF is 13 which is the bottom of the range recommended and I am going to go up to 15/16 on the next feed. The plants look like they could use a bit more feed - although who knows - it's a hard one to call? They do not look like they've had enough yet so we will see how it goes. So far all the tops are at the same height which is what I am trying to maintain as we approach flower and I am getting really into the mainlining approach to growing. Very satisfying so far. As they are nearing flower I am trying to get in control of the humidity because the last thing I want is bud-rot in the colas. I go for 75% early veg but then try to rein it in. Without any intervention I get 60% day and 75% night. At night my dehumidifier can take 10% off but in the day it is pretty useless. I think 65% at night will be OK as long as I don't let the temperature go below 20C. I also have more air circulation than in previous grows, almost all of which had a tiny bit of bud-rot before harvest. Also, the way they are growing from the mainline, I think I will be able to get good air flow between the colas and there will be no side branches at all to get in the way. I hate bud-rot. Day 39 veg - would have liked more vertical growth but it is accelerating so should be good to flip them at the end of this week. Also from what I have read, WWxBB is not a tall plant so they are performing as expected. Generally, I have been extremely . impressed with this strain in terms of hardiness and ability to cope with a huge amount of stress (and 2 big mistakes from me early on). The plants just keep coming back for more. Very nice. Also they have been very easy to feed with no issues. You can tell they are elite genetics - really nice to grow so far.