Thanks for the Carteton link,
Oregon specifies a 10° tilt on all of their crosscut full chisel, 0° on semichisel. I grind and file at a 10° tilt on all my full chisel chains. I can't swear that it actually matters, but I'm not likely to switch them (it costs metal to re-profile a chain, and it's also convenient to know that all my full chisel has the same angles on it).
They have some 45° ripping chains too, I would like to see what that profile looks like.