Grafting a sweet cherry on a sour cherry rootstock

I have used sour cherry as rootstock for grafting sweet cherry.
I have few such grafts that bear nice fruits and i like to eat more sweet then sour cherries
Here is a video how to do that.

Thank you for this timely early spring post Miroslav! The sour cherries in my desert New Mexico landscape have (with the help of birds) self-seeded and too many sour cherries are growing. I was going to cut these invasive wild plants down until I saw your video. Today I will save a couple of test plants and graft from a sweet Stella cherry to a sour cherry following your instructions.
Have you tried grafting other stone fruits onto your sour cherry root stock? I would like to try a peach, apricot, plum, and/or nectarine. Does this work?

P.S. The Tree of Forty Fruits by Sam Van Akin provides some more inspiration

Hi, you cant graft other stone fruits (peach, apricot, plum, and/or nectarine) onto sour cherry rootsstock.
Sweet cherry onto sour cherry rootstock works fine, here you can see one of my older graft such combination with fruits .