
no idea about the sire/dam thing, that's very odd. Yes if your pup is ISDS just fill the form in, pick another word to make a 2 word name and you should be ok. If you have an affix that, I think can be the other word...so Shep of .... or shep something would do. They have a slightly different numbering (so will be 1 number shorter than others). My Cody was from dual reg sire and ISDS dam - he was ISDS so no problems :-)