I don't understand all the fuzz about priority boarding for F/J.
I prefer to board last, so that I can maximize my time at the lounge.

This said, I fully understand that Plat/Gold flying Y want to board first, before the horde flows in.

As far as outstation check-in counter is concerned, it seems that special Y cases are more and more treated in F counter.
Last week, it was clearly two family ticket holders on standby negotiating a way to get to their final destination during this very busy holiday period, while two F pax were waiting behind ...