[Rik]

Originally Posted by GingerGeneCarrier

I am a bit confused as the smudge is sometimes on the back surface of the riser and sometimes on the vertical plate of the arrow rest.

Just to clarify: by "back surface" do you mean the part of the bow furthest from the archer at full draw (i.e. the back of the bow)? The bit closest to the archer (behind the button) being the belly of the bow...