How do you tell if someone is extended?

[Blaaaaaaaah]

Alright. I get pwned in PvP KQ a lot, but sometimes I'd like to know whether they are on extenders or not. Because if it does, it makes me feel slightly better since I am on 0 cash shop in terms of extenders and charms and the like.

With the range of gears these days it seems hard to tell. But say, if I see an archer in a 55-69 PvP KQ with 4k HP, buffless, you reckon that's extended? She also did a crap load of damage on me but it's not like I've got strong defense.

I know there isn't an exact figure with the variations of equipments and marriage buff and things but, can anyone provide some sort of a rough range for each class when a person could possibly be extended for, say, a level 67-69ish range (considering that the people have highish END gear)?

My 69 mage with END gear (not max END but high-ish END) has 2.4k HP at the moment, if that helps...