+Critical Rate on Bows

[Retalion]

So I was cubing my bow today, and got +8% Critical Rate; Just wondering what that does for my damage in comparison to...

1. 8% dex
2. 8% total dmg
3. 8% wep atk
4. 30% boss bonus (this one is mostly for unique, but just wondering)

Also, just wondering, is +% critical really worth it in any scenario? I've heard almost no mention ever of this bonus, as its always about the +% Dex or 30% Boss Bonus and whatnot.

[JoeTang]

Sharp Eyes: 1.325x
+8% Critical Rate: 1.36x
1.026x increase.

With Critical Ring: 1.375x
+8% Critical Rate: 1.415
1.029x increase.

[Veneni]

I calculated once +10% crit is about +8 W.Att. It does make your damage more stable I guess :)