I used a wipperman 9s stainless chain with the thought that coastal salt water would be a good application for stainless. I did not get any better milage compared to a KMC chain. It was replaced at the last moment before the chain could damage my ultegra cassette. I stocked up on Dura ace chains and see no real shifting performance between KMC, Wipperman, and Dura Ace. I monitor chain stretch with the KMC digital gauge. Definitely recommend the KMC chains for their value.