a hand vs PA, 200/400 HU

[Isura]

I think the crux of the hand is that PA is going to underestimate how often we have a flush, and that is going to throw off his bluffing frequencies to our benefit. Requin is spot on about us having the flush blockers. And also he can have the Ac which is a good blocker against us having a flush or AA. If I had to guess he had AcT or KcJ.