I checked on them today, the wedding cake still shows some signs of deficiency but WAY better, the other two are lush and green other than one yellow leaf which I removed.
One of the 3gs is starting to spread across the net nicely, the wedding cake is getting there, the other needs a few more days before I can start training it on the net.
Hopefully my flower nutes are still viable, this is the same bottle I've had since I started!