Finish off the end piece. It is important to achieve a flush fit, because all protrusions tend to show as thick bulges in the end. It's even better to cut the edges in a way that they do not overlap, and attach with thin tape. Remember, these strips will have to go anyway.
Contributors to this page: Thomas Yost (TDY), Patrick Poirier (PPR), Gerald Maroske (GUM) and Hendrik Maroske (HHM)