He refers to and calls my teacher “Shuseki Shihan Don” another teacher at my school “Jun Shihan Scott” etc. Kyokushin does more or less the same. So do others.
Ah yep I remember when I went to check out a Seido dojo I was confused with the titles! There was Jun Shihan, Kyoshi.. there seem more titles than in Kyokushin, but there are still a few more than just Sensei.
Ours was
1st-2nd Dan: Sempai
3rd-4th Dan: Sensei
5th-6th Dan: Shiha
Then up from there is Hanshi and Kancho, unsure where they fall exactly, Kancho obviously meaning more the president or head of the organisation.
And our branch chief was honoured with the title Shihancho, meaning chief of the Shihans (moreso because the immense contribution and effort he put into developing and teaching Kyokushin over the many years)