Hi Robert let you in on something Monica told me, test a piece of copper wire against the original raised panel lines, if it stands out too much then scribe a line joining the to halves of the panel line where you have sanded, then try sitting the wire into the scribed line with CA, now I test fitted my copper wire against the raised lines on my beaufighter last night and it all fits and blends beautifully no trouble at all. Before this sand all your seam lines away then try this idea, you should only be applying small amounts of copper wire where you have sanded to get rid of your seam lines.
scott