The complaint that most have about Simplex, I think, relates specifically to the Plastic/Delrin ones. The design isn't particurly different from Campagnolo (few would complain about Campy's ability to shift), but the materials used render it unreliable. The alloy versions of Simplex are pretty nice. They can take a beautiful polish, as well. I'd go with the Peugeot branded Simplex as it is the most accurate for the restoration. Save the Huret for another, worthy project (or sell it to me!).