As to oaking wine- I find it difficult to justify buying pieces of oak for my wine making. Between my tightwad status and the reality that I have 15-20 oak logs sitting in front of my sawmill, I have more oak than the "other guys"! It's various species, white oak, red, black and chestnut oaks and lots of scraps I could toast on a burner or with a torch flame. The green wood mostly all gives off the same oak acid wood odor as any wood person will know.
The aspect I don't know is what amount of oak I'd like flavor wise in my wines.
That's where I'm left to wonder?
I've seen the spirals, chunks and particles too with various toasting levels.
If you wonder if I use my own wood chunks for BBQ grilling that's an easy yes, but I use hickory.