Regarding DC’s guys names (and others), you should be able to register them with USEF and FEI and still have their breeding, listed. I know when I did Vernon’s reg with both, I took the time to fill in sire and dam, etc. I believe they also ask if the horse is registered with a breed (JC, in this case) and it’s registered name.
There is no reason you HAVE to keep an awful JC name (seriously? Would any of you really have wanted to keep “Go Senor Go”?), but not have their breeding listed. The people just have to do the teeny tiny extra work.
I know Tebogo Sporthorses tries to keep JC names, but they do change them sometimes. They do make a point of listing their horses’ JC names and including a link to their pedigreequery.com page, so you can look up their breeding. Now, this is a business big in promoting OTTBs, so, you would hope they would, but I don’t think you have to stick your horse with a horrible JC name for the rest of their lives and not honor their JC heritage. And, in the case of CANTER horses, you can always add the CMA prefix, even to their new and improved name. :yes: