This is a picture of a Pecan, very shaded, that I grafted last year. I grafted it over to Excel, I bought several of the pecan trees and when this tree was damaged in a storm and I had to cut it to the stump like the other, I grafted one of the shoots back to the original variety.
You can see how the both Scions took in the graft and how each Bud turned into a Limb.