Sort of a basic question I know, but what do you guys do/use to clean and protect walnut stocks. Ive only ever owned polymer/metal guns prior to this so I am unsure as to how to proceed. The stock on the dl classic looks like it has no finish on it at all. I was thinking about using a wood furniture product like orange glo or pledge orange oil. Would the lack of finish make it more susceptible to potentially warping or swelling?