Re: Towards a unified A´kido ?
Took me a while to get my head around this too.
IMHO, there is only one Aikido. That is O'Sensei.
There are many different organizations with different teaching styles and emphasis. That is as it should be because Aikido becomes an individual expression of the one Aikido. None are better or worse, only different. And, IMHO, not as different as they are similar.
Yes, your rank does not translate, but your experience and training does.