I just started to research the process as my husband did this not knowing the ins and outs of getting a better result on his claim. we sent his private medical records for his disability claim as he never went to VA hospital for treatment or diagnostic. worst case scenario he will be denied and we have to appeal it. He got a call a day before his c&p exam so he never got to prepare. he works as a crew chief in the air force for B-52 and C-5. He definitely got exposed to hazardous materials and toxins, he also said that he was exposed to asbestos and radiation emitted from something that im not too familiar with.lol!. we got his records from the national archives but the medical records was missing. as you noted, we will get this all sorted and plan our A's, B's and C's for this. Thank you so much...