I've got Home Depot's fanciest-schamanciest stud finder: "Zircon HD 70".
This one claims to find the center of the stud and has a precise-looking display.
But I am getting significantly-different "center' locations each time I locate the same stud... especially when coming in from the left vs right and vice-versa.
My workaround is to take a bunch of measurements, take the center of the resulting cluster as the center of the stud, and then drill little pilot holes starting 7/8" to the left/right and working inwards until I hit wood.
The Question: Is this about all I can expect from this thing, or might I be missing something?