Yes Kirkil, the stuff is really hard and stiff. Whereas yew has a elasticy of about 7gpa (Osage 12gpa), this stuff is around 24gpa, while glass is around 30gpa => its closer to glass than wood. No wonder the shooting feels like a glassbow.
It sands well with fine grit and also works beautyful on the card scraper. Also I havent had many problems with checking....
It has been highly appreciated for bows since the victorian age and even Howard Hill used soemthing like that for his favorite 170# flightbow.
Having it in stock now feels like balm for my collectors soul
Simon