Wow, that sure is nice and tight!
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I live in Europe, so we have
Taxus baccata here. Even the bext "high Italian Alps" yew rarely gets a ringcount higher than 40 or 45 per inch. Myself, I get my yew from sealevel up to 150 ft. (50 metres) above sealevel. I'm happy with a ringcount higher than 25, but even 15 rpi will make a nice light bow. I have used 50 rpi yew though, which is pretty unique in its properties.
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Here's some of my high ringcount yew.