My .02 is....... it looks like the tip isn’t hard enough...... and/or there’s not enough lube at the roller/tip.

I’d see about having the tip hardness tested on a couple of the ugly ones.

Do you have the springs set up so they are fairly close to coil bind?
You’re running .800 lift springs with what’s probably a net .700 lift cam.
There could be a spring surge condition going on if they’re installed too tall.

Is there any correlation between how bad they look vs being an intake or exhaust valve?

For the street duty portion of Drag Week....... the lash could really stand to be tightened up....... by quite a bit(vs what’s on the card).