Originally Posted by
Packetdancer
Edit: As for ultimate, I may be wrong on this (I have a migraine, so frankly, take anything I say today with a grain of salt), but I could swear it actually just force-syncs you to a specific ilevel. For instance, Dragonsong's Reprise syncs you to ilevel 605, but the savage BiS last tier -- even with the i605 Asphodelos weapon -- still averages out to i600 (as that was the max for every other piece of gear). Yes, substats matter -- hence specific ultimates still having calculated BiS sets to maximize the benefits -- but I don't think you actually strictly speaking have to be in savage BiS for a given tier to queue in.
(I mean, you have to clear the tier to queue in, so chances are you're in BiS at some point there regardless, but still.)
I did just log in and checked my saved DSR gearset (e.g. last tier's BiS) and confirmed it's only i600, not i605.