I used both the F2 and F3P when a working PJ, the F2 is a workhorse, rugged, reliable, the F3P was a sports car, small, easy to handle, additional features, the P model was weather sealed, the winder and drive were faster then drive for the F2. The F2 was kept in production well after the F3 was introduced as many professionals did not trust the F3 shutter. But, that was 30 years ago, how long will the electronics in the F3 hold out? If I had to choose, if shooting action is important then the motor drive on the F3 wins, if not the F2, along with a beater body for parts.