Hello,
I've tested something and noticed there is a some kind of bug in skill damage. I have +30 duel enchant backstab - as You see in 1st picture, and +15 lethal blow power enchant (2nd picture). There is exactly 690 difference in "Power added to patack" in pvp. And in third picture You can see that backstab, with more "power..." has lower dmg than lethal blow. Average difference is about 200-300 dmg, so i think its huge. It (prolly bug) also happend with the same skill - deadly blow, when +23 duel enchant (about 8,2k "power added to patak in pvp") did less dmg to my friend than +20 the same skill power enchant (about 7k "power..."). Sadly, i dont have screenshots from "deadly blow" test. I want to add, that nothing changed during test time, no buffs, no stances were switched. I have +150 element, and shaper with SA. I was attacking from behind all the time.
Here are the screenshots (link to album, somehow i'm not able to paste images here)
http://imgur.com/a/KQX1P
I would be gretefull if somebody could explain why this happends.
Best regards,
Muzyk