Wilting and rust spots on veins

This is more of an observation share for additional insight. I'm pegging the issue as Mag/Cal problem. In the past I've solved it with milk or tums+epsom salts(mag). After feeding them decently monday, here its thursday and though the flowers and majority of the plants are doing well, there's a wilting from the bottom up occuring. I'm hoping this fixes them. I'll be gone from Friday night till Tuesday, so I hope when I get back I don't lose them beyond no return.

They're definitely at least well fed on the P and K. So some deficiency symptoms of either of those can look like the rust spots, I don't believe thats the factor. I'm aware most nutes increase acidity, so that's where the milk comes in hopefully. I feel if it was a pH lockout, the flowers wouldn't keep growing as they are. We'll see come Tuesday.

Before anyone mentions it, it's not pests.

Doesn't look like Mg and Ca def usually starts in the newer growth, not at the bottom.
If I was a betting man, I'd say Phosphorus.

Yeah I’d be backing off the flower nutes a bit and slowly reintroducing them watching the plant. Would be a good thing to be able to measure your ph too. Take as much guesswork out as possible