Marked a 10mm line on the L/H inbound inbound slat tip from the edge of it. Trimmed the trailing edge of it on an angle so it fits inside the slat better, pushed the end cap into the slat until the line was centered in the holes. Drilled the number 40 holes then drilled up to an 1/8”. Debured holes in both the slat skin and tip piece. Sanded the edges to get rid of the rough edges. Cleco back on and rivet with A4 rivets.