I was particularly interested in the sticky segment topic. I did a search for sticky segments and I haven't found anything yet so maybe someone could direct me to some reading on this.
If there are chunks that are more resilient than others or something along that line it could explain some of the concerns being expressed for both ethnicity and matches.
Others have also asked about this in other threads. I am following up and trying to get a little deeper with it. I could really use clarification on what terms I should be using for this specific question.