6 is just about average. If you want, there is a section in the gw site under the daemonhunter link that tells you how to make your elite inquisitors fit a certain role and tells you what henchmen to go along with it to make it more successful. I think the thing is called "to purge the daemons".
Overall, it tells you how to make an inquisitor fit these roles:
A forum community dedicated to Wargamers, Wargaming 40K enthusiasts. Come join the discussion about Warhammer and Wargaming collections, miniatures, tactics, terrain, reviews, accessories, history, displays, models, styles, scales, reviews, accessories, classifieds, and more!