Ya, definitely not going to pinpoint which contact but to find a smoking gun on an intermittent contact failure

here it is working

https://www.dropbox.com/s/tqbllmr6rcac70p/Auto%20Relay%20Test.mov?dl=0

This is with a N/O wire removed and trying to pick and drop as fast as possible to make sure it caught the failed contact

https://www.dropbox.com/s/v8pshgf4v0a68et/Auto%20Relay%20Fail%20Test.mov?dl=0