It nevers seems to amaze me what little tweaks I learn about on Audiogon. I read this thread recently, and decided what the heck, give the Missing Link a try. My Creek 5350SE has about 60 hours with the Missing Link installed, and the results have been rather surprising. You can hear each of the instruments more precisely and their position is more pinpointed in the soundstage. The amount of air in Diana Krall's "When I Look in your Eyes" is noticebly better. I think my biggest surprise was the degree of decay I heard of the chimes in the song "New York Minute" on the Eagles "Hell Freezes Over" (XRCD Version) This is definitely a keeper tweak.