“Quiver Killer” reminds me of a Mitch Hedburg quote, “2 in 1 shampoo… 2 in 1 is a bullshit term, because 1 is not big enough to hold 2. That’s why 2 was created. If it was 2 in 1, it would be overflowing… the bottle would be all sticky and shit.”
Making small sacrifices is not the goal of building a racing groupset. If you aren’t racing them, then get Sora or some other combination. Otherwise you are trying to use the wrong tool for the job.