3 of each breaker - including Eater - means you find a way in faster, and Apocalypse more consistently, right?
I only installed Eater in 3 of the 4 rounds of a GNK, and in the 4th I never drew Apocalypse and lost. ¯\(ツ)/¯
Cuts were 2 Hacktivists and a Dirty Laundry. Didn't miss the Hacktivists, but didn't play decks where they're all that relevant in the first place. A third Stargate would be nice. In the end, it's all just fiddling around the fringes of an incredibly solid core.