I got some purple plum, I was told a Japanese variety. Wood is heavy and not soft to finger nail, but rasps/shaves easily with Sureform like yew. (property of grain?) I dried it with bark on and sealed ends - no checking and started tillering - no moisture packing up the rasp. I decided to remove bark and was surprised by weight of removed bark (aka bark was still wet). Continued to work it and back started to check while working it (within 1/2 hr) . Stopped, sealed it and checking stopped.
Very dense, very elastic, hard to dry with bark on.
Just wonder Joachim M - how big is big log and why can't it be used for bows? (sorry I am green...)