ENY isn't working at all. It still needs to be higher. Last night was an atrocity. At one point, I saw a perk multiplier of 3.24, and later 163s were a whopping 10 perks. Base defense was never so much fun, even though the horde of 38Gs and 110Cs, and hurricanes wasn't much of an improvement over 38Ls, 110Gs, and Spits.
I'll not make any friends here, but if you fly for one country, and one country only, even to the point of upsetting arena balance (and therefore gameplay for all), and you don't like the ENY restriction: just STFU. You're the reason it's implemented.