I'm Clueless on Half Strokes and Circles

[Lord Fatboy]

In following video from DrMatt he recommends to not do any circles on Coticule:

I do circles from time to time on stones with slurry which can brake down: jnat tomo, mikawa naguras, thuringian, cretan hone and surely some other which I am not aware of.

Working on plain water or with non-breakable slurry I do avoid usind circles

Cheers

Only if the stone is a "problem" stone.
He does generally recommend circles on coticules.
I highly recommend reading Keith's comment under this video.
It's enlightening.