We didn't get the sanding documented. But here goes a quick overview.
Sand the riser, sides of the limbs and tips with 60 to remove any tool marks, 10 strokes up and down each limb edge, followed by 5 strokes on the limb corners changing angles on each stroke to round the corner.
Change to 150 grit and remove all the sanding marks left by the 60 grit and any tool marks you missed.
After that's done and a careful inspection for unwanted marks, it's time for sealing. The Seal your riser only. Let it set overnight and reapply to the riser. Let set for 24 hours.
Now put 220 on the palm sander and do the the entire bow, glass included. Smooth it all out and apply 2-3 coats for final.
Hope this helps!
Mike