I'll take a stab at it. tl;dr, I believe the proto ultima ring is ever so slightly better than the shire ring, if I'm going off the relic BiS set (
http://ffxiv.ariyala.com/Z4GK)
(http://ffxiv.ariyala.com/YT92) Also ariyala isn't updated yet.
Shire Ring: 22.419
Ultima Ring:
23.931
2 things I want to point out:
- I'm using a weight 0.290 for Crit, according to Dervy's estimate on its new weight due to the higher average crit baseline with the relic set (which isn't reflected on the front page of this thread).
- Changing to the ultima ring in place of the shire ring is an increase of 17 ss. So there are a few adjustments that went into calculating the weight of the ultima ring: Removing the extra 3 ss from the relic and putting it back into det (crit ends up maxed at 275 with just acc restats), and subtracting the extra 14 ss from the weight that is wasted since it's over the 625 ss tier.
So the ultima ring looks like this:
59 ss - 10.03
54 crit - 15.66
=25.69
-2.38 (extra 14 ss)
+.621 (restat 3 ss to 3 det in the relic)
=23.931
So yeah, slightly better. I believe.
http://ffxiv.ariyala.com/Z4GP
What I don't know is if the rest of the ultima accessories open up other avenues of gear sets, or if there's a way to bring that SS back down. I'm too tired to look more into that right now.