Line of least resistance
Breadboarding sound-studio stuff, I've been bitten by croc-lead resistance. Anything from an ohm to 3 or 4. That's enough to shift a DC working point, or create unsuspected ground-coupling. Therefore delighted to find these from Rapid: very low wire resistance, good grip. Design is not quite perfect: like most of the others, from different suppliers, the sleeves slither a bit, slowing you down. Dab of superglue will fix it, but you probably have better things to do!