I would have thought 文貞 Buntei, but, there is no period named this unless it is one of those oddities that were dated before the official period name was given. John
One thing that is important, to me at least, is comfort and relaxation. Oftentimes I have found kantei when with important figures in the nihonto world very stressful and I don't want to lose face by a really bad call. I have even sweated with the pressure. Making it a relaxed friendly non-competitive process would go a long way, the freedom to be nonjudgementally wrong. John