I'm in agreement with the "heartwoods favor longer seasoning time",and, "whitewoods don't seem to mind rapid drying" theories. I have built whitewood bows ,from tree to finished bow in less than 2 months,and years later,they still perform the same as the day they were finished. Heartwoods tend to contain oils and resins that solidify over time ans cannot be rushed. I follow the 1" of thickness per year curing time for these woods. When I rough out a green osage stave,with near bow dimensions,with limbs a little over 1/2" of thickness,I give them 6 months to cure.Then I carefully weigh the staves for at least a couple of weeks to make sure the weight remains constant,then proceed with tillering. JMHO God Bless