Unfortunately when you ask a question you never really know the answer you will get. My advice is if you do not want to hear an answer, then perhaps you shouldn't ask the question.

If you are trully having a problem with RF interference then you should look for well shielded and twisted pair cables. Unfortunately they are few and far between for full mini to RCA cables. I have found that a short RS mini to F RCA adaptor and some good shielded twisted pair RCA's (actually automotive audio RCA's) have worked very well for me in a very EMI/RF noisy laboratory environment.

I trully can't imagine any situation where the source using such a cable would require such care with the number of contact points. If you care to enlighten me as to an exception I am more than willing to listen.