I posted this on Jacks' old board around the time it ended so it never had many replies/thoughts. And this is just for arguments sake as I am looking for insight from people with far more experience with breeding than myself. So here goes.
Just names not an actual breeding. Lets say Poncho was bred to a daughter of Redboy (and this daughter was everything redboy from the tip of her nose to the tip of her tail) There were two females and two males. Female A is everything Poncho. Like Poncho spit her out. Female B is everything Redboy. Like she was out of him all over again. If Female A was bred back to Poncho this would be inbreeding on paper as well as an inbreeding on genetic traits. If female B was bred back to Poncho and she is everything redboy, this would be a paper inbreeding just like her sister, but in reality it would be genetically/traits-bred breeding similar to the first breeding to get these two daughters.