If the idea is to get the scran down as fast as possible 'racing'- then it matters not if it is wood or metal. Spoons have been carried by soldiers throughout the ages - what makes a spoon a 'racing' spoon? walt-ness?
Had every type of spoon from nicked NAAFI plastic sh it to gucci titanium action form Cotswold Camping(nicked too!!!) - who cares they all do the job. Key is to remember to have one on you - don't matter what type. That said, good old fashioned stainless are good for belting each other when the boredom sets in
You've now got me out of retirement, rummaging in the loft, desperately trying to find my 'racing spoon', a rather attractive Chinese porcelain jobby, with a flat bottom and hand-painted writing on the handle, liberated from a chinky.
OK, non-tac, but what the hell, you do what you can to look civilised.