Herbie's don't leave a mark where I use them, and there is statement on website about being different sonically compared to sorbothane.
Herbie's seems to enable very detailed, and extended, clear sound. No single footer is "universal," but the unique ninety day return trial period should let you hear for your self.
Herbie's seems to enable very detailed, and extended, clear sound. No single footer is "universal," but the unique ninety day return trial period should let you hear for your self.