I've seen various(not CZ's) rifle with laminated(wood venier) stock fail abruptly under impact of shooting, I'm not talking about one but many (from a top blackpowder company), yet well laminated stocks can endure a lot of abuse(WW-2 laminated stocks which were on M-98's).
The top quality product is composite material, these have a very very low expansion coeffiency due to moisture which wood will swell up. The filled up(urethane-foam) rear part of the stock sound like hell if bumped against a tree branch (spooks off animal if used to hunt)
The wood(walnut) is much more appealing to the eye but will swell & distort if exposed to a humid enviroment.
Basically it boils down to if you like your rifle to be nice or a tack-driver under extreme arsh conditions.
I personnaly like the walnut stock
