Here is a closeup of my Sweet Lavender mulberry graft. You can see the original stick wrapped in parafilm. It was grafted this spring onto a mulberry rootstock. The original Wellington died back two winters ago and the rootstock came back up and had a full season of growth before I grafted onto it this spring. The cleft graft was done just above the spiral guard. I was worried because for awhile you could actually see daylight through the bottom of the "v" in the cleft graft, but it has since filled in. It is sneaking up on five feet.
(Edit--> The more I think about it, I grafted two sticks in the same cleft (right next to each other), and the parafilm one seen in the photo is the one that didn't take, the other one is the one that grew almost 5ft. Both sticks were about the same diameter originally. This is a pretty good visual comparison, I still can't get over the amount of growth in basically 4 months)