Even though I enjoy new models in-game I am getting sick of constant critical errors in Dalaran, so I've decided to degrade my client to "plain" WotLK.
My question is, would it suffice for me to only erase the "patch-w.mpq" from Data folder and "patch-enUS-w.mpq" from Data/enUS, or should I redownload the whole old client from torrent?
