XIV WAR Tanking - Baseline Mitigation and PLD comparison

[Gamemako]

It heals for more than that. Potency 250-5% (Defiance - 25% Maim +20%) So 118.75 potency healed?

I was not including Maim in the potency listing because it is added to all equally (20% multiplier). However, it was included in the estimate of total drain.

Defiance is a multiplier, not additive with Maim. You made the same error with Storm's Eye in Butcher's Block: it multiplies damage by an effective 1.1111, not adds 11.11% of base. Additionally, you left out the conversion from potency to damage in your SP calculation -- at the equipment range we're discussing, you should expect to the tune of 1.3 damage per potency after crit adjustment.

If you use 3 IB's and 1/2 a bloodbath (because storms eye only lasts for half bb duration) with 11% increase you'd get the following benefit:

Already pointed out the error in SE stacking method here. Additionally, you will not stop using Storm's Eye -- unlike most debuffs, enemies do not gain resistance to the vulnerability debuffs (Disembowel, Storm's Eye, Dragon Kick). You will continue to have Storm's Eye up for the duration of Bloodbath (and everything else).

You would be right that Bloodbath isn't a large portion. Over Bloodbath, assuming nothing but SE/BB alternating combos (no IB or Fracture, which means your DPS and drain are actually a little bit higher), you should expect 2480 base potency over 30 seconds, or 620 base healing from BB. After adjusting for Maim (1.2 multiplier) and Defiance (0.75 multiplier), Storm's Eye adds 62 potency in healing over the duration, which is a meager 80.6 health drain @ 1.3 crit-adjusted damage per potency. Like Inner Release, adjusting for this is less than 1HP/s time-weighted.

To get the eye healing over a minute you must maintain 120dps, get 3 IB's in every minute, ensure Eye is active for bloodbath and every IB (which wouldnt be the case as you'd only use a maim combo twice in one minute).

As I showed in my previous math, your DPS doesn't have anything to do with it. You will use SP/SE in a 1:1 ratio with Inner Beast in this setup (neglect Infuriate use and Bloodbath, which obviously favor Storm's Eye), which means that you can just compare raw potencies. Independent of damage concerns, Storm's Eye increases healing from Inner Beast (100 additional potency healed per use) more than Storm's Path (93.75 potency healed per use) heals.

Game: I'm curious how many maim's do you keep up in a minute? I only keep up 2 currently (as it lasts 30 secs). At work right now but what's the difference between 2 Eye's and 2 Paths?

As above, it doesn't matter how many you use as long as each use of Storm's Eye contributes to at least one Inner Beast on average.