I’m planning to fly KCDW to KEZF under IFR in a few weeks. The most frequently approved route on ForeFlight is KCDW-GLOMO-WOOLY-KEZF which would take me directly over the DC FRZ. I didn’t think aircraft were allowed to transit the FRZ unless the pilot has a PIN, but I could be mistaken (PIN may just be required for landing in the FRZ?). I don’t have a PIN and would rather not go through the process of getting one as I rarely fly in this area. I’m assuming ATC will just vector me around the FRZ, but obviously I don’t want to count on that. Anyone have any experience with this?