IMHO, R can signal for a fair catch anywhere (6-5-1)
IMHO, R can only make a fair catch between the goal line and neutral zone (scrimmage kick).
IMHO, R can only make a fair catch between the goal line and in or beyond neutral zone (free kick) (6-5-2)
IMHO, If R is OOB when signaling for a fair catch and returns in bounds to make it, he is guilty of IP,
IMHO, IP is an exception under PSK.
IMHO, if R shimmies up the goal post, sits on the cross bar, signals for a fair catch, catches the FG attempt, does a backflip ,lands with both feet 7 yards deep in the end zone and in possession of the football, K should be awarded 3 points (9-10-1, unfair act....see a previous topic for deeper discussion), R player should hope his school has a gymnastics team or a local circus is hiring..