Reinshaw - How often to you check runout

As the title states how often do you check the runout of your probe?

I've been pulling my hair out with a part where the indexing lines were significant ... the probe was the last thing I checked and it had nearly .7mm

I adjusted it (not the quickest thing I've ever done) but now yoy can hardly see them :D

I guess I'll know next time but was curious how often people check it.

Thanks ... Paul