That nylon multifillament DOES NOT move... I bought some and was bummed that it didn't expand so I went and bout the PET. That stuff is bomb.
I'm not a huge fan of the PET. I find it to have an unpleasant texture when it touches my skin. I'm way more into soft sleeving. The downside of non-expandable sleeving is trying to worm the wire through. That is the technique you'll need you use. Make sure the end of the wire has a clean cut with no wire sticking out of the insulation. I cut a small piece of electrical tape and stretch it over the end. This serves two purposes: the stretch helps keep it thin, so no added bulk and helps the wire slide easily through. Others attach some something like fish line or a paper clip to the end. Regardless, you need to worm the wire through the sleeving a few inches at a time. Once you get the technique down, it goes really fast.
Would you say that this silver plated wire is better than Mogami W2893? Which one on lunashops would you recommend for making a 3.5mm cable? I have Neutrik connectors and some 95 paracord or 1/4" nylon multifillament for the wires.
The random SPC isn't "better" than mogami - It's just different. The problem with ordering from random sellers on ebay and lunashops is that you have almost no way to confirm that what you're getting is what they are advertising. It could be a load of BS. Sure, you can chemically test the silver and copper to be sure that at least they aren't lying about the materials, but I doubt anyone but me and a few other science nerds like me would even bother. So you are taking it on good faith that you are receiving the advertised product. Even then, the differences are so minute that it wont matter.
What does matter is functionality. How flexible a cable is. How it feels to the touch near your neck, chest and arms. Does it tangle easy? Does it hold memory easily? These are things that people notice every single time they use a cable. So, if one of those cables is significantly more flexible, softer feeling, doesn't twist or tangle, doesn't hold memory, and the other does? Then yes, one is better.
Generally speaking, wire with higher strand count is usually more flexible, but it really depends on the type of insulation dielectric that is covering the wire. You won't know until you hold them side by side and compare yourself.
People choose Mogami and Canare because it is consistent. We know it's pretty flexible and that sleeving it in something soft and to our style preferences like paracord takes care of the rest. When you buy random wire with various different insulation and strand counts, you're rolling the dice. I've personally tried wire from at least 20 different vendors with various different make-ups.
In the end, nothing can touch the value/performance ratio of Canare L-4E5C. $0.48/ft (of 4 conductors) from Redco.com. So that comes to $0.12/ft for good quality, industry standard, OFC copper wire. So I still order other wire from time to time? Absolutely. I'm a big fan of PlusSound Audio's basic occ SPC (sold out currently), and their 75-strand occ copper. I love the soft insulation and great flexibility. Whenever I plan on leaving the wire bare, they are my go-to.
It really comes down to personal preference and usage. "Better" really depends on your wants/needs. My "better" might not be your "better".