Well... I attempted to graft 15 Black Star scions onto 3 year old root stock this weekend.
I must say my skill seemed to improve as I went along.
I emulated/modified Adam Shafron's technique from his YouTube video:
https://www.youtube.com/watch?v=uYY8FGZp8SEI noticed something I thought interesting later that evening.
Some of the scions were weeping drops of water along the overlapping edges of the grafting tape.
Not at the point of grafting... but further up the scion.
Perhaps where the leaves had been removed???
I'm hoping this mean capillary action is occurring and the scions are taking up water.
Also... I tried the grafting tool above and found it worked fine provided the rootstock and the scion were at least 1/4 inch in diameter.
Thanks for any input!
Kevin