Warrior %/s (KMS You & I + GMS Unleashed)

I'm struggling with a new equip upgrade. unbuffed pic below. I'd like to ignore the 2% str neb.
weapon empress scimitar
unbreakable will 40%
Leafre Codex 30%
Gollux Set 30%
light wash L2 15%
Rhinne's 10%
BTamer card 6%
3 Pirates card 6%
missing 10% shrugs

looks like 0.82114 = 1 - (1-0.4)*(1-0.3)*(1-0.3)*(1-0.15)*(1-0.1)*(1-0.1)*(1-0.06)*(1-0.06)
vs 0.92862 =1 - (1-0.4)*(0.35)*(1-0.3)*(1-0.3)*....
and i only have one additional 9%atk potential besides the unique emblem

 Spoiler

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keep the ignore? or just cube for +21% atk? secondary option, keep ignore, and recube the unique one to legendary

i think this is enough information o_o

Your math is about there but I think you got something wrong. (1-0.4)*(1-0.3)*....... gives you the PDR reduction factor, which you multiply to a boss's PDR to find the effective PDR. You then subtract that from 1 to give your effective DPS after factoring in PDR and PDRignore.

The earlier set of PDRignore values mean that the boss's PDR is down to ~20% of its original value, and with the emblem the boss's PDR is down to ~9%. How much DPS increase that is for you is dependent on the boss, and bigger PDR means bigger DPS increase. For reference, against Hilla, the earlier set lets you do 90% of your full DPS, and with the emblem that goes up to 95.5%.

Is that alot for you? Are you going to C/bosses often? If no, then no.

Hadriel