I might go back to the penultimate tier. We'll see.
I have all the ships at 7*, so the extra blueprints weren't much help considering the amount of shard shop currency I get from other sources. But this last one gave me enough reinforcement mats to improve my last ship's reinforce ability to t3 (Hound's Tooth, lolol...) and I have no more abilities to increase that use omegas. Well, okay, there are some of the pilot abilities, but since I'm not actively working on those pilots I don't think it'll matter.
So I seem to have reached the point where the deadly tier is redundant AND the penultimate tier is as well. Huh.
Could always do with more prestige, though. Three more Admiral events and Raddus is going to drink up a bunch more.