Circling back to the grain run-off discussion earlier in the thread - I got to thinking. Every bow is made to taper towards the tips, some to pretty thin delicate tips.
So, grain run-off always happens for a good portion of the limbs length depending on where you start your taper. No way to avoid it.
I guess we are only concerned with severe run-off where the grain takes a sharp turn off the edge of the bow?