I have some Yellow Cedar Burl from BC. (Like Southern Alaska but they got stuck with Christy Clarke and Alaska lucked out with Sara Palin)
It is rare - very light colored and in this case, the burl is dense and uniform. It has been drying for years (like maybe 50 years careful storage) but WSSI won't touch it because of the resin the stuff holds. K&G will process it. I would not use it without stabilizing. It is SO beautiful if prepped properly.
I'm not sure I'd be so impressed if it were not richly figured.
Rob!