Here's a few photos of a typical "Black Star" strike.
This is one of the more vigorous individuals.
I'm using clothes pins over the graft to reinforce the area.
Soft of like clamping a wood glue joint...seems to help.
The Eugenias have really hard wood.
Last year I attempted to graft a large lot of "Black Stars"... zero takes with tape alone. All duds.
Then I attempted to graft Eugenia Calycinas with tape and pins... Success!
This year I attempted the "Black Stars" again... with pins... Success!
I can't prove that the pins help... but they sure don't hurt:
Kevin Jones