IAS Calculator Confuses me

OK, I am trying to figure out how much to socket my my barb's helm as I am getting close to completing his gear, but I have never played a barb. The goal of the character is to run Ubers, and here is what my gear will look like (If you have any feedback on gear choices please also let me know:

*Arreat's Face

*Metalgrid

2x Ravenfrost

*Dracul's Grasp

*Goblin Toe/Gore Riders (Going to try Goblin, but if it is to slow, switch)

Chains of Honor (in 8% ed Dusk Shroud)

Death (in Ethereal Berserker Axe)

Breath of the Dying (in Ethereal Berserker Axe)

Now when I put into the speed calculator that I want to use two berserker axes (with 60% ias on mainhad), and level 29 frenzy, it says I need 60 ias to get to the 5.5 break point, and 120 to get to the 5 breakpoint. The thing that confuses me is that if I take the 60% ias off the main weapon, it says I need the same amount. I am trying to decide between 15% ias jewel and an um at this point, but I am still not sure...|||I'm with you on that. Haven't played since 2004, when I used to understand all this stuff. Now it's all greek. Any explanation others can provide would be useful to a lot of us!|||Code:

IAS FPA
0 7.5
8 7
19 6.5
35 6
60 5.5
105 5

The value given includes the weapon IAS which is why it doesn't change.

Previously it was thought that IAS on the off-hand didn't count but we now know/think it does, so a bit of off-weapon IAS will help to speed up your attack when Death swings.

I'd use Highlord's (in Uberland the AR from Metalgrid will prob help more) and 15 ias Arreat's for general pvm so you hit the 35 ias breakpoint with Death. You can add in a Nosferatu's to that to hit the 105 bp with BOTD. Normally I'd recommend Guillaume's Face over Arreat's but here the lower level frenzy screws with your nice breakpoints :<