Anyone who has not tried solid core should definitely give it a go. Definitely has its plusses. And doesn't have to be just one strand. A couple strands e.g. 2x20awg or 18awgx24awg, etc. will suffice. Or try PlanetDave's suggestion of very small gauge (24awg), which has interesting qualities as well. All worth exploring. Haven't used it for a while, but the focus and coherence of solid core can be addictive.