One will need walk on water credentials before I'd trust anyone else to bed a rifle for me. To me, it's the equivalent of having someone else zero the arm before I head out on a hunt. Simply not going to happen.
No screws used at all when bedding, and a bore-sighter and my targets suggest there's no stress induced at all as I subsequently tighten/loosen the screws.
There are lots of professionals that should not really claim such credentials.
If the inletting is bad then a set of guide screws are needed.
But in 99% of the cases no guide screws needed and never used the action screws. I fill everything with clay, use wood shims to protect the action and stock and C clamp the action it to the bedding compound gently. just enough force on the clamps to bottom the action out nothing more.
And this right here is why I learned the trade myself well that and having no money to pay someone, Now that I can pay someone I don't because I don't trust them. Ask a few questions and get some BS answer, and walk away.
