Upg Zhen

I was just wondering which is best. 2.0 Zhen or 3.0 Zhen. I currently have a 3.0 Zhen cause I was thinking it was better. Since more hp=more melee with Zhen Mastery, however people with 2.0 Zhens hit a lot harder than I do. They have like 150 less vit+20% less hp but they have 60% more melee and like 100 str or w/e.
Would I hit harder after I get better acc or is a 2.0 simply just better?

I'm guessing 2.0 is better for melee attack and 3.0 is better for your DFFS(WFFS for sage) and FFS only. Not sure now because I was using my upg zhen for fishing at FH and a fish snatched it from my hand and I lost the ****. Hope someone else can help clarify.

try the 4.0 upg zhen with 150% hp, it's very good for vit dekans.

I have never even seen a 4.0. I'll try to make one if they come back out! :D