I've trained in a variety of different arts. For the most part I've found that most instructors tend to encourage a cross training student to wear the rank that they've previously earned in another art. They are just required to stay at that rank until they have learned all of the information (basics, forms, self defense techniques, drills and principles) and skill required to be promoted. Depending on the similarities between the two arts this could be anywhere from several years to mere months. I've never seen an instructor fill out a certificate for equal rank.
I've met two instructors that have required the student to go back to white belt and start over no matter what. I tend to shy away from this type of instructor because it seems a little bit fishy. I want my journey to last as long as possible. It is a life long journey for me, no matter what so I really don't care about taking the extra time. It seems to me that instructors who force someone to go back to white belt is mostly looking after their own interests and not the interests of the student. Money... They want to be able to charge the testing fees.
Instructors have to worry about their student's egos. The ego has no real place in the martial arts, it is because of ego that we have so many sokes running around and so much political dissent in the arts. It is a shame, but we do have to worry about it. When someone has earned a certain rank, no matter the art, they are proud of it. To tell them that they need to wear a white belt again is basically telling them that all of their past training was a waste of time and they aren't going to take it very well. Allow the student the chance to be humble and remove their own belt from their waist and accept that they are ignorant of your art. To force someone to be humble is to humiliate them. It is never the instructors place to do that. As an instructor you wish to encourage humility and to encourage a person to realize their potential. Not to say that the work that they've done is worthless.
I've met two instructors that have required the student to go back to white belt and start over no matter what. I tend to shy away from this type of instructor because it seems a little bit fishy. I want my journey to last as long as possible. It is a life long journey for me, no matter what so I really don't care about taking the extra time. It seems to me that instructors who force someone to go back to white belt is mostly looking after their own interests and not the interests of the student. Money... They want to be able to charge the testing fees.
Instructors have to worry about their student's egos. The ego has no real place in the martial arts, it is because of ego that we have so many sokes running around and so much political dissent in the arts. It is a shame, but we do have to worry about it. When someone has earned a certain rank, no matter the art, they are proud of it. To tell them that they need to wear a white belt again is basically telling them that all of their past training was a waste of time and they aren't going to take it very well. Allow the student the chance to be humble and remove their own belt from their waist and accept that they are ignorant of your art. To force someone to be humble is to humiliate them. It is never the instructors place to do that. As an instructor you wish to encourage humility and to encourage a person to realize their potential. Not to say that the work that they've done is worthless.