Gotta warn you about too stiff cables too. They can break faster than the more movable silicone wire. Maybe combining both is a good idea, depending on where you actually put the wire. Sometimes you need one property, sometimes you need the other
Silicone wire isn't all perfect tho. It can take some times getting used to how it should be soldered. All the small strands make it easy to split up if you apply too much pressure while soldering it into place. Also make sure to sure a scalpel, razor blade or something very thin and sharp to cut the insulation.