All who think pure str dual weapon is bad at 90 cap are not nessisarily correct.
I have a lvl 81 fully farmed dual weapon character,
his masteries are;
80 heuksal
80 fire
80 bicheon
and 40 light
right now, he has the defence of a blader and the HP of a glavier,
hes got 21,500K HP and can tank any chinese his level and even can tank easily the mini unique lvl 90 on eyre peak.
if you dont believe me watch my video on youtube;
http://www.youtube.com/watch?v=b3qrCB5TZI0and im going to make some pvp videos also.
Sometimes i dont even use lightning in pvp because the parry raito increase is like 2X and i already have a high parry because of my garments..
I simply start with blade and get as many status' on the enemy and then with bleed, impotent/division ill KD and stab, pull out my glavie and hit about 2-3K more (depending if they are int or str) then I normally would and 4-6K with crits.
Once i critted 11,6K on a lvl 81 archer with ghost spear and impotent and bleed, imagine with all 3 status' on it could get very high crits.
Watch my videos before you jump to conclusions and dont juge a build just because it has low lightning, thats the only downside to this build id say.