I believe CYs have eight pickguard screws and the COBs have eleven. I'm pretty sure CY stands for "China (i.e., the People's Republic)" and "Yako" a city in Taiwan where there is a guitar factory in which Squier used to make these particular guitars. Not sure what C08 signifies, but I'm going to guess "China, 2008."Can't search for these short terms. What are the differences between these?