Originally Posted by
Oneder
If it starts to slip or looks like garbage then replace it. Chain measurements are kind of silly if you are not a racer.
Again, this is obviously incorrect. You can use a chain w/o slipping to the point that it has negatively impacted the cassette. Replace the chain at the proper interval and the cassette will last through several chains. Wait until it skips and you will replace both chain and cassette each time.