I still use redirection with mag (Harrow and Volt would prob be the only other) But then I don't have primed flow, and with regular flow her energy pool is too low for quickthinking. When I came back to her recently, I initially went with vitality, but found after a few runs in Mot and the like, I was going down alot from 10-15 mins in. So I switched out to redirection, and now feel pretty comfortable in those places till around 30-40 minutes before she starts getting pretty squishy.
I also mostly use the miter with the judgement proc to restore any health that I might lose through the shields, which does a pretty good job
With Arcane Grace, Medi Ray, and Shield Charger, increasing shield capacity just doesn't make much sense. At high level, enemies tear through shields like they're not even there, and at low level, it doesn't really matter what you do. When enemies get to health, there's at least some armor between you and death, and with Quick Thunkimg, there's a third pool of resistance (also affected by armor).
If you're not using Medi Ray or Arcane Grace, I guess shields make more sense....but I'd still prefer health or armor.
Thanks for resending that invite.