I have been playing with this quad for a few weeks now, and as promised in the swatch post, I want to show some looks created with Chanel Signe Particulier.
Admittedly, it wasn't as easy to figure out the best way to wear this quad (for my eyes anyway). Signe Particulier doesn't have the buttery texture and blendability as Harmonie du Soir, for example. Which means it has the harder/sheerer quality that somewhat reminds me of the old baked formulation. I happen to appreciate the rock hard formulation of the old baked quadras (documented here), so this finding doesn't change my positive opinions on Signe Particulier. It just took me a little time to figure things out.