Lee Way for Channeling?

When a shot channels, what is your protocol for dealing with it? do you chuck it immediately or do you give it a few seconds leeway? Although i’d like every shot to be pulled without channeling, people aren’t the most consistent things and not every shot is perfect, i tend to allow the shot 3 seconds of leeway before chucking it (i.e. if it drops from one side for more than three seconds i’ll bin it and remake it).

It would be good to see what everyone else’s opinion and protocols are!