Looking at it from an immediate gain point of view, if one had to choose between killing more normal demons or killing specific demon shamans, they would normally choose the former considering the time wasted ignoring other targets for the sake of killing the shamans that produced low amounts of EP.
However, in my case, I chose to concentrate more on the shamans as it seemed to be more of an urgent matter than hunting normal demons, even going to the point of minimizing my attacks as soon as I had the rough coordinates for the next shaman out there.
Relying on my sense and guesses that kept giving me a bad feeling about the current situation, I couldn't abandon the thought that the shamans had to be eliminated before long!
'That is really unusual…'