There are "compatibility" issues in player profiles. The current "compatibility" rating has to relation to the partners as it currently exists. I find that my random partners' 3-4 star compatibility ratings have little or nothing in common with MY profile and they often have NO profile at all!!! Compatibility should be based on keywords in common, such as "NMF", "inv min", "RKC", "2/1", "o/e", etc, and maybe the software can be tweaked to be more accurate in this regard.