I also should note that I found having Star Sound Audio Points under the MC-6 with the six 0.5s in it had a very nice improvement in the sound. Apparently MC-0.5s don't like to vibrated.
Heaven knows how many MC-0.5s it would take to get no further improvement. I wondered what length of wave guides with more magnets would be the peak of ic, pc, and speaker wire improvement. I thought it would be at the Ultimate Reference Helix line, but learned better when I heard the Pros.