i have the cobalt cable 6 cable that i use for sacd in my ht set up. never used anything else. they seem fine to me. sorry for the lame answer but the cobalts are relatively inexpensive, and they always seem to be having 10-20% off specials. keep in mind that the six cable bundle is not as flexible as six individual cables so you need more space behind your rack as well as between components, and are a little more difficult to connect imho. but they definitely tidy up your wires.
aloha keith
aloha keith