Originally Posted by DaveSSS

My solution is alternating the use of three chains with one cassette, and never leaving a new one in use for any longer than it's half-life. If you get the third new chain into use and don't have any new-chain skip, you can keep alternating the three chains at shorter, but convenient intervals and never encounter chain skip. It's a lot cheaper than using 6-8 chains and tossing each one after only 2,000 miles.