Anyone use the KMC X9SL Superlite 9 Speed Chain Ti Nitrate on an 8 speed cassette & felt it was not smooth enough?

I found 6-speed, 7-speed, 8-speed, 9-speed, 10-speed, 11-speed? Sheldon Brown: "As you go to more sprockets on the cassette, you need a narrower chain. However, using a chain one size narrower than standard rarely presents any problem. Thus, you can use a "9-speed" chain with a 7-speed or 8-speed system, or a "10-speed" chain with a 9-speed system. This is not the ideal approach -- shifting may not be quite as smooth -- but it's workable."

Thank you