...trigger adjuster screw except remove it. So I don't know if the stock screw being shipped with current production Gamos is long enough to get an overenthusiastic trigger twiddler into trouble.
But if it's too short to be dangerous, then it' also too short to make much difference in the trigger's feel. Then the temptation to replace it with a longer - and problematic - one is obvious.
Back when I was twiddling the stock adjustment on B18s, however, the stock screw was definitely long enough to cause all manner of mischief, and I was routinely setting my triggers to the brink of disaster - until I read Jim's article.
Meanwhile, in my experience, lubrication prettymuch always reduces wear compared to dry metal contact. Most dust is soft organic material and not abrasive - especially when greasy
If you happen to get your action full of grit, of course, then you have a different problem - that requires prompt attention.