Shares rejected – Personal thresholds?

Hope everyone is doing good.

I have been mining for a little bit and was curious about shares, in particular the personal threshold you set yourself.

I am currently running on HiveOS and have a low amount of rejected shares per rig, averaging around 0.15% (failed shares) on each. This is caused by my OC settings. But I am curious at what point or percentage do you tone down your OC settings or restart your rig? I just want to know the different takes and perspectives people have when working on their personal rigs.

Thanks a lot for reading.