I do have a GMA tuned engine purchased used off an undisclosed (SSW!) Classified Forum that has a crusty/rusty crank in front of the prop driver, as possibly caused by a wooden prop. Maybe the prop was soaked in saltwater before use? Anyway, I bought a new crank for it. The engine did come out of the Lone Star State, OBTW. I probably should have sent it back, or made the seller pay for the crank, since he claimed it was in excellent condition, I paid what he asked, and a pretty nice chunk of $ it was. He still might step up and pay for the crank, don'tcha think?

Steve
Edit: I'm not a big user of wooden props, so far, but I suspect that you'd be way better off to take them off, put them in a cozy place in your flying kit, and put them on at the field. Otherwise, the 'hanger rash' alone will not be kind to the props & the props
may not be kind to the shaft. Still, if you use a spinner, it would be a hassle, and I'm not into hassles. I have not found many wood props that come close to being as good as APC, Thunder Tiger Cyclone, and Graupner props...and they hold up better to clipping through the grass at our cow pasture.