Step 3: Cut the scion wood
Cut the scion wood so that a bud is at the top of the cut. The cut is a wedge shape with one cut on each side of the bud. I needed a fairly light whittling hand to get it just right. You don't want it too long or short of a cut. It needs to be long enough to make good contact with the root stock, but not so long that it won't fit into the opening slice on the rootstock. This picture shows the vascular cambium (that white-ish layer), which needs to make contact with the same thing on the rootstock. To increase your odds for connecting the two pieces you slightly angle the scion wood in the rootstock.