The thing I don’t like about using lube on my lids: sometimes the o-ring sticks to the keg when I remove the lid.
Normally not a problem; however, tonight I remove the lid in one fluid motion and…splash. The o-ring stuck just long enough for me to remove the lid, and then fell straight into my fresh 5 gallons of beer.
Thinking now that I should have been more conscientious about sanitizing my o-rings! Good thing I had extra o-rings on hand though.