I agree with what km34 has said.
Originally Posted by km34
Generally people find it easier to date separately, and if a triad or quad happens to develop, view it as an awesome bonus.
I specifically want to highlight the above. My wife and I started down this road a few years ago and quickly learned it is smoother going dating separately. While we are not opposed to triads or quads or any other configuration, we do not actively look for that now.