Now, with giving what I have in hand, can you elaborate on why it is so wrong to flip them right now and continue feeding them with 1.5 PH'd solution until they are all as healthy as can be?
Because the frame you create in veg is the frame for what you achieve in flower. If you flower unhealthy weak plants, you will get weak yields. Obviously there's nothing you can do about your time restraints so you've got to make the best of a bad situation.
I do have an ec pen and I am using House and Garden coco a and b as a base and nothing else for the moment.
What's your water ec?
What are your lowest temps ?
If your tap's between 0.2 - 0.4 then you should be 1.0-1.2 total on your base feed.
You need to get some shots of the plant under proper lighting to see exactly what shape it's in.