I have used both and quite frankly I can't tell the difference. However, I haven't done any rigorous blind side-by-side testing, so YMMV. I've also used both flavors of the Soma Supple Vitesse tires which seem almost identical to the Rene Herse tires. I do say that all of these tires are tangibly smoother and quieter to ride than any prior tires I've used.