Possible but code wise it would be much more than via room mods. Also the idea that you can only CW others that have the same spray option selected makes it a bit harder to be used in CW. And CW is really just TDM on certain maps so I don't really see why people can't just ask others to do some 2s and 3s TDMs instead of CWs to test the different sprays. Not a huge deal.