I'd hazard a guess that the data will be pretty blurred G if he's using an AI.
I used P-5-P at the same dose and had elevated prolactin along with elevated estrogen - no AI used. As soon as I implemented AI prolactin followed estrogen in dropping.
It would be cool to see if no AI is being used this cycle but P5P is. I guess the best thing would be pull bloods prior to any P5P 4 or 5 weeks into a NPP run, then introduce P5P and see if it actually lowers the prolactin.
@Jestopherson are you using an AI?