Golden Chinquapin

Last week I learned about Golden Chinquapin for the first time, after noticing an unfamiliar tree growing among tanoak, pacific madrone, and Douglas fir in NW California. I haven’t been able to find a lot of information about it. Would appreciate any tips:
- How good are the nuts ? Are they really similar to hazelnuts?
- How productive are the trees?
- Does anyone have experience growing them?
- have there been any attempts to domesticate them? Are there any strains with better or more abundant nuts?

Here’s the Wikipedia description:
https://en.m.wikipedia.org/wiki/Chrysolepis_chrysophylla

All I know is that a somewhat distant neighbor in Seattle had one in the planting strip, and it was a fantastic tree.  Robust growth, good looking evergreen.  Never noticed anything coming out of it, other than a squirrel practically flying out of it with an angry robin on its tail.

Howdy,
As a re-foestation worker, one of the seasonal "jobs" I could get was picking evergreen cones. In the early years we learned about  Golden Chinquapin(part chestnut/part oak) only because we were waiting for some climbers to finish picking.  We were standing around and the instructor found and showed us chinquapin nut clumps that were scattered all over the ground. He told us they were edible and proceeded to tear apart the sharp spiney husk. There were viable whole seeds in some of the pods and we did eat them. They are like filberts or hazelnuts. He also said that they could be roasted, stories of family camping trips. He also said that squirrels get a lot of them so you needed to be in a good grove of nut producing trees.

"In southwestern Oregon, on humid mtn. sides of the Siskiyou Mtns. facing the Pacific, Golden Chinquapin is a hundred foot forest tree. Spiney burrs do not cover the nut, which peeks out, suggesting an acorn with a deep cup"

I do find the spiney husk here on my property, but nowhere near the tree, probably carried there by squirrels, and they are all empty. The one tree I found close to my property is very tall and I have never been able to see the "nut" pod clumps. The same with the wild hazelnut bushes. I never find any viable good hazel nuts.