Well I do disagree a little
in a sense that all the CSV I met were rather unpredictable and really cannot be compared with GSD. I mean I cannot think to walk off leash in a city or let my little boy with my CSV, things I could do
100% truthful with my GSD. So CSV are in my opinion rather specials dogs (and I think it's protecting them to highlight this point). But I also can agree that I met only not good specimen and failed the education of my CsV mix.
About wolf blood %, even with wolf gene % we would not be able to conclude a lot as it's a non-linear process (+ only few genes are involved triggering a specific hormone responsible for adult behaviour (genes highly inhibited in dogs)).
Dogs are socially well fitted for human world, wolves not, where are located the CsV ? :
http://dusk.geo.orst.edu/lydia/doggies_science.pdf