Yeah, that swirl of fibers around the hole, certainly makes for an odd situation as far as bending. and you almost have to hollow out the belly side, to make the knot wood the same thickness as the rest of the limb. And even then, the cone shape would probably be stiffer.
The whoop-tee-doo is simpel compared to the knot. And its no walk in the park either.
Go for it Dano. Show no mercy! I wanna see this sucker bend through that knot.