Bell Never Aligned

the amount of offset that you are likely, I said Likely, to encounter, will not matter to the pilot bushing nor to the input bearing.
But, this misalignment is multiplied the further it gets from the centerline of the crankshaft. That means that by the time it gets to the clutch, clutch departure has to be increased to prevent the thing from dragging and causing difficult selection of gears; especially first and reverse; and it overworks the brass rings. No big deal for most guys to run extra departure.
But the real loser is the hub of the disc that, which, in gear, has to constantly flex back and forth every revolution; with the disc clamped and restricting that flexing. Eventually the hub gives up.

Of the few bells that I have had indicated,(maybe 10 or 12) they were never out by much, and could have been sent. I have not absolutely had to correct any of them; Except my own.... because I was looking for a quality shift at 7200.

The thing is, unless you do the thing, you won't know it's out until after the trans is installed and been field-tested................ and even then, you may not realize what the shifting problem is. Yo may just blame it on the A833 cuz everybody says they are slow-shifting.
Well I can tell you that, properly set-up, the A833 can shift like lightning; even at 7200. And it all starts with a minimum departure, which means that the crank and trans centerlines have to be on the same axis.
IMO; there are only two excuses for a lazy shifting A833; 1) ignorance in not knowing what to do about it, and 2) laziness to do what needs to be done.