I don't AI, so I rarely respond to posts on this group, but . . . .
EPD's are a useful tool but the operative term is "estimated".
Calm and docile mama cows were generally calm calves, raised by calm cows in an environment where they are used to people (primarily you) and worked in a non-stressful manner (don't go rodeo and expect them to trust you). Docility is a huge factor in the bulls I select - for natural breeding. But you can't just look at the bull's EPD's. What are the cows like you're planning to breed? If they're already high-headed, good luck getting replacements out of them.