I cut up one huge red oak log last winter, got a ton of 1x boards off the outside, and six 6x7 floor joists out of the middle. None of them bowed or twisted, and they were left out in the sun. (Not my idea) I don't know how I got away with it, new sawyer I guess. I can't seem to cut any oak without turning every cut, and that is cuttin 1x boards. I definately prefer pine for staying straight.
Dave