From past experience, that is usually a "which came first, the chicken or the egg?" discussion.

Once the bearing is pounded out, of course the lash will open up for that reason only.

If the adjuster isn't found to be physically loose at the same time, then we would know the adjuster didn't loosen up
on it's own.

In the scenario I am referring to, the lash opened up because of a parts failure and no other reason
(which is much more common than the lash opening up first and parts failing afterwards).

If adjusters are coming loose on their own, then that's really the issue (not where the lash was set).

What brand and type/lobes are in this? If you know someone who has played with the lash a bit
on that lobe family, that's who you would really need to talk to.
What is the cam manufacturer's recommended hot lash?

Crane recommends .020 hot for my R276-420 and that's where I intend to start.....The lobe family
seems to be most commonly used in brand X circle track applications, I don't know of anyone else using
it in a Hemi, so I'll have to sneak up on it and find out. I intend to try looser up to .024 or so, and tighter down to .017 or so.