I've had luck with a couple new growth cuttings and have a number of suckers that came off an older tree growing - it's possible. That said, I was able to get the one with suckers because the large older trunk had died, so maybe it just pushed all its energy into making the suckers viable. They were already about pencil-thick.
It's annoying due to cost but I have a lot of luck using shohin akadama as my medium for striking cuttings and getting strong growth. Maybe it's psychosomatic but it's all I want to use now... maybe that would help for some reason?
For seeds I use akadama fines and pumice fines combined with excellent results, for cuttings I use small particle akadama and small pumice. the size that Stays on top of the small screen in a typical 3 screen sifting set.
Results improved from most other mixes due to PH of substrate, moisture retention and pore space for air combination.
In both settings I use shredded sphagnum for additional moisture retention and protection from drying out quickly.
Additional tip is to protect from excess air movement to improve humidity levels. cover or plastic enclosure depending on circumstances.example below! Ume not persimmon in this photo.