Guys, I think you are missing the point. I have heard from Dave Tinsley that by cutting the sapwood from the heartwood you maintain the properties of the sapwood since the heartwood would pull the sapwood into compresion and make it worthless. By removing it and drying it seperatly you keep it from being pulled and contorted by the heartwood as it dries. Then when laminated back onto the heartwood it makes for a superior bow than just using the heartwood. Even, suposedly, better than yew wood.
This was told to me but I have no means of testing the hypothessis. But this information comes from Don Adams Vvia Dave Tinsley so I suspect there is something to it.
Yep! I would follow the sapwood under the bark just like on white woods this way but use a bandsaw to seperate the sapwood from heartwood.
David T