I guess I have a bit of experience then. When I bought two (11" babies) together from a pet store (instead of breeder, dumb choice but ended up with two amazingly awesome snakes I wouldn't trade for anything) that said they ate for them, I couldn't get them to eat for the first month and ended up taking one to the vet. I had to inject 4cc of baby food and 1cc of Flagyll down their throats every other day for a couple weeks until they fought me and I offered pinkies again. I ended up having to help them still by pk'ing the pinkies and "force feeding" them into my pb's mouths for them to swallow until they finally started eating on their own.
I guess they were both extremely comfortable and trusting with me because they both only ever fought me twice, the first time and the last time lol