Accepting that West German show line dogs are unfit for protection work, the true comparison is between the West German working line (often stated simply as German working line), and the DDR/Czech line. There has been much debate over which is superior, and this debate may continue for years to come. Some people consider the West German lines to be superior, arguing that the DDR/Czech lines were developed before the split between working and show lines, and are not extraordinary in either discipline. However, it is important to consider that both were recovered from the original German bloodlines after WWII, and both have been continuously built up and bred for working qualities over the past 60 years. The bottom line is that they are both working line dogs, and they are both a solid choice for work as a personal protection dog.