IMO I do believe Raw is Best
I wish I were able to have Roxy on raw too, but she came from a breeder that was a BYB maybe even a small scale puppymill, so as a result of the lack of screening and just breeding to breed, my poor Roxy girl has MVD and she can't eat raw....she will remain on a special diet for the rest of her life.
Please have a Bile Acid Test done on your pup after he is 6 months old. BAT will show his liver function. If the results are high, he will not be able to eat raw. Just an FYI