Thanks!

I ordered... lesse here... I think I ordered six 5-foot sections of 1/4", plus eight 5-foot sections of 1/8", and I managed to use up all of the 1/4" and almost all the 1/8" in the process of developing some custom fan wiring for my Lian-Li. This stuff is addictive!
I have some more on order, so I can sleeve the sensor cables for my Fanmaster, my mobo's Firewire-header cables, and some 3/8" stuff for that darned 4-pin ATX12V line (I could NOT figure out how to extract the pins from it, and 1/4" sleeving won't fit over the plug!

).
If anyone does go with the double-sleeving route, cut the second layer about 1.5" longer per foot because it contracts lengthwise as it expands in diameter to fit over the first layer. You can always scoot it back off the end and shorten it if it proves to be too long. Also, wrap the end of the first layer with masking tape before sliding the second layer over it, so the fibers don't snag and fight you.
I keep wondering what a two-layer job would look like with UV-reactive under black...
