Ninja Primary Attacks Or FF Proc Alternatives

[Judge Jetson]

Hello all,

I am looking for experienced feedback on the primary attacks +3% crit value. 
 

My build has all 3 attacks but I would rather have 2 or 3 other attacks with the FF proc. 
 

I simply want to know whether the additional +6% if I drop 2 or +9% chance if I drop all 3 will be really noticeable. 
 

kick

crosspunch

mace volley … as I know someone will ask. None of them are really for the dmg just the FF proc.
 

Thank you,

Judge

[Black_Assassin]

What power are you looking to bring back that much?

[Judge Jetson]

Both emp auras. I can make them seconds from perma with my build on the beta server with kick cross punch and mace volley rotation. 
 

I don’t have the capacity to see a difference in the crit values though, 

 

Trying to weigh the values of each.