OK, hmmm, with the Kukkiwon, if you are a 1st Dan and want to jump to 3rd Dan (2 ranks) and have sufficient time in grade and pay for both promotions and have a master to process the paper work it can be done in the US. If you are a 1st Dan and want to jump to 4th Dan (3 ranks) and have sufficient time in grade and pay for all promotions and, wait for it, ta dummmmmm, go to Korea to the Kukkiwon and test, it can be done. How ever, unless you know a really senior grand master with one heck of a lot of pull that can get your rank transfered over, well, you will be starting at 1st Dan and working your way up the system. They really don't care what rank someone esle promoted you to, they only care about KKW rank. to them if you aren't KKW then you aren't a certified BB. Sorry...........