Can you maybe ask him more about the interviewing itself? Like if he prefers the flashlight over the Ovilus 4 or if it sometimes makes him tired manipulating your equipment when answering your question. Maybe even ask if he sometimes lies in his answering. Hehe… you never know what a demon’s thinking.
I will get back to doing my investigation, trying to communicate with the spirits in the doll probably after the new year (2015) though.
Thanks for the question!