Tight lash setting solid flat tappet cam

Nope. No rant at you.

It was an all purpose general rant at people who tell other people to set the lash .002-.004 LOOSE cold on an iron/iron engine because they THINK lash gets tighter.

I've never seen lash get tight with heat.

Had nothing to do with you. Don't know why you'd think that, as I didn't even quote you.

I've seen lash loosen with heat. On my VW race car for example. And that ran .004/.006 cold.