"The best budōka can do sundome (寸止め) at any time. So, I have never injured a training partner so far. We say "Oteyawaraka ni onegaishimasu" before we begin keiko."
Quote from a discussion about proper training I had with Unsui Sensei. Sensei went on to explain further how my students should train with a presence of sundome in every technique.
Director of the Jinenkan Kosei Gogi Dojo, and personal student of Manaka Unsui.