Dave Miller wrote:
Is it a generally agreed upon practice that regardless of your rank that you always wear a white belt when visiting another dojo?
No, it depends on the specific circumstances. When going to practice in a seminar, visiting an affiliated Dojo, or having a pre-arranged visit to at dojo (as an invited guest), I would wear my normal practice belt.
But, once I join another group as a student (in a non affiliated dojo), I start from scratch, including all the related meanings. Obviously this would mean wearing a white belt.