A general suggestion: use a large amount of caution when switching dojos (even in your own organization), as first impressions of these types of things mean a lot and can affect the tone of the relationships between students and teachers and students and students for a long time to come.
While this is true, it should also be stressed that by having a bit of patience, and being willing to just train and learn as you go can make a difference. I am in a situation where I am now training at the hombu as opposed to the branch dojo I was ranked to yudansha in. I made (and still make some) a lot of 'mistakes' as far as ettiquite and procedure are concerned. But once people realize that you are there to stay, and not carrying an attitude about the way you used to do things, as opposed to how you do things now, people really do cut you a lot of slack as you catch up. Being open about the fact that you came up in a branch dojo and don't know everything goes a long way too. Just train hard, listen, and learn.