I know arcano is BiS (did I sayed something different?), but getting one is very rare (what I mentioned, its nothing you can farm and has a 0.5% proc chance from relinquished trinkets). Nobody knows if the original 20% guy had an arcano crystal already, but with arcano crystal his haste looked a bit low.
Useing hunger + owl (what most raiders have) you dont get any vers or haste on trinkets. Why the poster never replied (he is active in the forum), might be he just wasn't honest.
I'm using all the right legoes+tier+trinket and I have 13% vers
https://worldofwarcraft.com/en-us/ch...rissan/winnrie
Jewelry probably makes up most of it.