Can you be pretty blatant and ask the PD to check on the application? It's probably just my Midwestern modesty 🙂 but it feels awkward. I'm hoping there's a more tactful way to introduce this topic. It's been very natural at interviews I go to since the PDs have all told me before I asked that they would do this, but it seems forward to ask the PDs to check on the status of an application otherwise. Tips on phrasing?
Also, for other's reference, I had initially emailed a PC who seemed very perplexed. She was very kind and did provide the contact info for the PC of the other program. In short, it may be best to directly contact PDs in these cases.