Khamsin your graph is right, but your proc rates are amazingly low. Back before they updated Zanshin, I tested the proc rate of it. With no addition gear, I was seeing around 30 Zanshin attacks for every 100... much higher than 10%. Second after the patch they vastly increased the accuracy of a Zanshin attack. It's a small sample size (I didn't feel like keeping track) but out of 5 hits I Zanshin 2-3 of them and hit every Zanshin attack. By the way, that was with 180 polearm skill (and meat) on Dynamis-Xarcabard mobs. So, if you look at the realistic facts... if you have 75%ACC and a Zanshin attack has around 90%ACC, then you would parse (.25 * .3 * .9 = .0675) 6.75% higher.... which is very good for a job trait, in my opinion.
Edit - 30 Zashined attacks for 100 missed attacks.
Oh, I think it has been clarified but Zanshin cannot proc on a weapon that has the "Occasionally attacks X times." Ridill, Joytoy, Soboro, etc. It procs just like Double Attack, where if you swing only once then you can Zanshin. It can proc on 1handed weapons though.
Agreeing with what Rkenshin said, it is very difficult to tell if Zanshin kicked in on a WS and whether it can kick in with a normal Double Attack. I seem to remember swinging, double attacking and then a Zanshin attack but I could be wrong.
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