Are multiple concordant opposition items worth having for the mana regeneration? I'm planning out two greensteel accessories. Two routes I'm considering:
Goggles: +5 CHA skills, 300 SP, 10 HP, +6 WIS, concordant opposition
Bracer/Gloves: +1 CHA skills, Wizardry 6, 35 HP, +6 WIS, concordant opposition
-OR-
Goggles: +5 CHA skills, 300 SP, blindness immunity, disease immunity, +6 WIS, concordant opposition
Head: 45 HP, Heavy Fortification
Tradeoffs are -1 CHA skill, -1x concordant opposition, -Wizardry 6, +heavy fortification, +blindness immunity, +disease immunity. Wizardry 6 isn't really a loss since I'm aiming for archmagi in another slot. Heavy Fortification is already on Minos Legens, so I'm only gaining +25 HP. I don't expect to have an epic aug slot for Toughness for a while.
I'm leaning towards option #2 with only one concordant opposition item mainly because I don't know how to deal with blindness immunity and disease immunity in other slots (3 double shard GS accessories is a bit much, I think). I've never had a conc opp item before, so I don't have any reference of how relevant (or pointless) the effect is.
TL;DR: Is a second concordant opposition effect and +1 UMD worth the losing blindness/disease immunity when you already have one item with concordant opposition?