Aaron, thats looking like your getting the back established nicely. I will sometime measure from the off side of the knot to see if I have enough width to reduce the stave from one side in order to eliminate edge knots and then lay out my center line with whats left of the narrower stave. As an example, if thats a 2 1/2 wide stave you can take 3/4 off from the knot side and eliminate it and still have a 1 3/4 to work with on your width layout. Just a thought on a way to deal with it. Obviously you have to consider the orientation of the other knots and what effects that will have on their placement as well, but its something to consider.