Here are the required tools, the top wood holds a steel plate 3mm which allows the opening of the lip. The drill with stopper for the holes and the gun with the mixing nozzle allowing the epoxy injection. The drilling caused debris to interfere with pushing the lip back into place, cleaning the crack is not so easy.

Elastic lashing help hold the Starboard lip back into place. Due to drilling debris the fit was not perfect and a small bump resulted.

The repair at the junction of the two mast track profiles. If the main sail top slider gets a bit worn it may wedge into the gap. The gap is 5mm wide and as the slider ages it tends to "stick" into the gap formed by the lips. At places the gap could be a little over 5mm and cause the wedging problem.