I try for equal spacing of the nodes in the limbs, so I'll move the center node up or down or the spacing between 2 nodes up or down within the riser area.
If a node falls within 2 inches of the tip, it gets cut off anyway when I cut the back of the boo off to put my tip overlays on.
Most times I'll have an equal number of nodes on each limb. All depends on the piece of boo and it's node spacing. If you look at your boo, the nodes on one end will be a little closer together than the other end, not much though, maybe an inch different.
Most times I center the nodes an equal distance from the fades and see how things go, it's always different..