You can give a little extra phosphorus this week, and if you have microbes + a sugar source (molasses or the golden syrup from the supermarket works great, I've been using it for 20 years). The stretch phase is over, and the thirst will be a bit less. Don't let your pots dry out, but you shouldn't overwater them either. Slowly but surely, increase your humidity until harvest, and always water with water that has a pH of 6.3 - 6.5, even though it's often said that it's not necessary. Otherwise, everything looks great. Don't worry, the Blue Sunset Sherbert is very robust and forgives a lot; I grew it twice in a row last year, and my reports are pretty well described if you want to check them out. Your harvest will be fantastic. Just make sure that when drying, the temperature is as low as you can manage, and the humidity during drying is always at 60%.