Can I even graft these? If yes, where should I start? What is the best technique I need to research and watch videos on? Do I cut off the top of the trees before grafting? I prefer for the trees to stay alive if the graft dies because these scions have been in the fridge for 2-3 months now (moisture preserved though) so I am not too confident in them.
Could I graft the scion on the rootstock tree with this v groove style and are these cut lines I have indicated in red at appropriate places?
I’ve tried many cornelian cherry grafts and only been successful twice. Both were veneer grafts like the link @Tana shared above. My cleft, whip and tongue and bud grafts were all unsuccessful. I find them much more challenging to graft than pears, apples, persimmons, pawpaws and jujubes.