Change for Steel Cyclone?

[Kuwagami]

in Lv50 dungeons Parry occurs roughly 1/2 of the time, without Wrath roughly 1/4 of the time.

I would like to know how you can conclude anything from "data" showing that a +10% parry rate buff gives a +25% parry rate in practice.

i can go through a lv50 dungeon in only IL100gear + IL100weapon. even with DPS players out-gearing me, Steel Cyclone makes a good impact on Enmity there. how come it doesn't seem to make an impact at all on Enmity generation through a lv60? what am i doing wrong?

you're not considering the huge difference there is in stats in a +10 ilvl difference between i100 and i150

You can tank easily any i130 while in i100. You'll have troubles tanking i190 if you're in i160.