Nothing, absolutely nothing, is a guarantee what you do is right for everyone. Being a shihan, travelling extensively to Japan, having been in all around the world taikai, training 5 or 6 hours a day, training "real at-risk" situations continuosly, living in Japan. NOTHING IS AN ABSOLUTE GUARANTEE that what you do or say is right for everyone. It's just a personal opinion, sometimes inappropriately influenced.
If we were to discuss GUARANTEE, I have only one, my Master Hatsumi Sensei. A hug and keep training with love and respect for others. And as my friend Anthony Netzler of New Zealand said: "we are all under the same roof"
A hug from the tatami.
Pedro Fleitas, Unryu