Thank you Matthew, it was a fun day at the track, as always. I was using 3 GoPro cameras, that is how all footage is on the same lap. I use a program called RaceRender 3 to overlay my RaceChrono lap timer with external GPS receiver & OBD-II reader data onto the GoPro footage, than you find the bits you like & I join them together using a program called VirtualDub. It is time consuming, but I enjoy seeing the data on the footage when I watch it to relive the day. the ISF is a great fun vehicle