Problem with 100% Spell Absorption not negating poison dmg

[Dirty Little Nord]

Now it says on the page that poison damage should be negated.

http://www.uesp.net/wiki/Skyrim:Spell_Absorption

"permanent 100% spell absorption, thus becoming immune to all spells affected by Spell Absorption"
"Interestingly, Magic Absorption works not only with spells but also with every effect in the game that is not the following..." "...Therefore it is possible for Magic Absorption to negate effects of shouts, poison..."

My platform is X360, patch version 1.9.31.0.8

My supposed 100% Spell Absorption setup involves
Miraaks Robe
Miraaks Boots,
Atronach Perk from Alteration (I've noticed it doesn't appear to show up in Active Effects, when Resist Magic Perk shows up as "Greater Magic Resistance?")
Atronach Stone

This should be 100% Spell Absorption.

My initial testing involved taking Lydia's steel sword and giving it back poisoned with a Jarrin Root+Human Heart potion (around 6400 poison damage). This just killed me every time after I punched her on purpose to get her to hit me. Trying it with a 'normal' ~100 damage poison showed my Snakeblood was partially resisting it as expected, and boosting my Poison Resist to the 85%(?) cap seemed to allow me to just survive 1 hit of the Jarrin Root poison (over 1k life).

However the Spell Absorption is not kicking in at all vs the poison, I've tried adding in Miraak's Gloves too, but nothing seems to help, or have there have been changes between patches that poison always bypasses Spell Absorption?

Anyone offer any advice or observations as to what may be missing or messed up?
Thanks.

[warlord714]

If I had to guess, I'd say that when the article mentions 'poison', it's referring to the effect that is triggered by a tripwire or something, and NOT a poison that's applied to a weapon. I don't have much experience with this though, as I have never used Miraak's set to achieve 100% spell absorption because I hate the tentacle explosion effect. I usually achieve it by playing as a vampire with Necromage plus the atronach perk and stone. This it seems DOES achieve immunity to poisoned weapons, but it's likely due to being undead and NOT due to having the 100% absorption. It's just like trying to use poisons against draugr or wispmothers. They simply have 100% resistance to poison because they're flagged as undead. Hope that clarifies.