Sounds like you did great, in spite of being "disqualified"! Hope that the all make it -- sometimes these birds just die right as they are getting good size. It is the biggest ones that get leg problems, usually.
It will not hurt the meat to give them some vitamins. But if they are smaller than the rest and are acting strange, I also would process them ASAP. You don't get much warning before they die. I eat little cockerels that only dress out to be 2 lbs. Cornish game hens in the store are your birds...