Re: NGD and locking stud question
Edge or Lo Pro never didn't have lockers, it's in the spec.
As for the ovalling of the anchor holes from non locking studs, I've come to a different conclusion over the years. I've u[dated one of my pages with it, somewhere.
I can't find it.
My theory is, based on experience, that the anchors lean just from the string tension alone, depending on the piece of basswood. Some basswood is harder, some softer, if it's soft, over decades that springs and string tension is enough to push the anchors into the wood, and keep pushing.
This is if your anchors are set below the surface of the trem rout, which almost all are.
Anchors that are high set, either at the surface of the shelf, or even a little above, these anchors are never loose. Only the deeper set anchors will get loose. My opinion is that the sealer coat that soaks into the wood at the surface, makes it very hard, so when the anchor is set high, it can't push into this reinforced basswood. When it's set low, there's nothing to stop it from doing whatever it's going to do.
Just my opinion from years of observation. I don't think the locks have anything to do with a loose anchor, or at most, very minimal to do with it. I think it's all about the piece of wood and how deep the anchor is set, and if you put 10's or 12's on your guitar you're just asking for the problem to accelerate.