Just got the FCS rachet tool this arvo - not sure about the EZ-out bit - looks a bit like some sort of cork-screwed drill bit. Can't quite work out how this would remove a stuck grub screw...
Does it bite the inside and essentially chew it up a bit on the way out?
Interesting though - I thought I'd done all my fins up tight with the normal small FCS key - and the troublesome one with a proper allen key... but I got at least another easy half turn with the rachet. Now I am more confident of not having any probs tomorrow