For body and head retention, I have found that flaked barley works better. It can make your beer a little cloudy, but I have never ha d a problem with that despite the fact that I don't filter my beer. It just needs to cold condition a little longer.
I find that if I follow procedures carefully, head retention isn't a problem either. When I do have a problems, it's usually because I did something wrong.
Take that carapils!