For me personally I was a unicorn hunter in the beginning. It was releasing myself from the "seeking" side that allowed me to find so much of what I now have. The freedom to be flexible in what I want brought me the woman I love.
I believe, couples seeking couples fall under the false belief that it will help with jealousy and time issues. This again falls under the belief that it will make all things equal. One thing I have experience and witnessed, nothing is perfectly equal. A triad is usually scalene and a quad is usually more polygonal. In the end the configuration won't help those problems. Only the individuals will.