Currently struggling with pf, not the first time... Flared up next morning after an evening 7 mile trail run wearing zero drop trail shoes, about one month ago. Slowly testing running in shoes that have good support; Hoka One One, very stiff shoes with thick cushy heels. This has just about cured my pf.
Weekly training runs 10-20 miles (variable pain next morning). Training for a marathon July 23 with any luck.
Donated away my zero drop shoes.