After looking at several pictures of the stern, reviewing the plans and taking some measurements, I feel that the filler aft of the last bulkhead is not deep enough (forward to aft). I removed the filler and moved the back edge of the filler 3mm. The line furthest toward the stern in the picture is where the filler will now end. That will allow for a smoother bend of the planks and look more like pictures that I have seen. At least that's my theory.
Bill
Bill