Follow the grain around it or leave it,really up to you. I have done them both way. Pretty cool with the knot hole in it,I really haven't found them to be all that shocky
when left,if you think about it you take the wood off to either side and if you measure the limb minus the hole you don't have much more wood than a straight limb bow, and it is in ,or about in a non bending area, at least for me it would be so shouldn't be a problem.
Nice piece of wood.
Pappy