So in recent years, talk of burr alignment has been a thing. Enough so that for some grinders, it's even a selling point (Monolith).
Back in 2012-14,15 time frame, it seemed to burst into the HB scene with the HG-1, when people who were getting consistently ugly, spritzy pours began to suspect burr alignment. (I never had that problem with mine, but I only use it on a direct lever, or maybe I got lucky.)
So fast forward to today. For no reason other than time and interest, I've started thinking about it again. Not sure why. My pours look fabulous and my espresso tastes good. But... could it taste better? I don't really have any convenient way to tell. And I don't want to just buy a Monolith on a hunch.
So I'm looking for generalizations, if such exist. For example, is it safe to say that if you get good looking pours with no obvious and intransigent taste flaws, that further alignment is a case of diminishing returns? Or is that clearly NOT the case?