Grafting fun-cherry-cherry, almond-apricot, apricot-apricot

Surprisingly, according to my garden log book, our little cherry was planted in 1993. It is a "Lapins". Supposedly self fertile. This tree has been a bust, it flowers beautifully but produces almost no fruit. So last year, since Ted had been so successful with his peach grafts, I undertook some cherry grafts. The Stella planted in 1985 has been wonderful, but is starting to go down hill. We planted a Royal Anne in 2006, it had enough growth to provide some scion material. My grafts in 2007 were mostly simple splice grafts. I tied the scions in place with rubber bands and then wrapped them in parafilm. Even though at the time I was thinking "how can this even work?" they were all successful. Grafts were made Jan 15.
Update
These grafts made a huge difference in the productivity of the Lapins. Now we have fruit galore.  Unfortunately it all gets infested with the spotted wing drosophila.