Today was a milestone – the first day actually working on airplane parts! It was a little intimidating since you start off by drilling holes in your brand new vertical stabilizer forward spar followed by cutting a chunk of the spar off. The drilling and cutting seemed to go well. I used a drill block to help me drill perpendicular to the material, which is a good technique for me since I don't quite have the sight picture to do it freehand. I made the cut with a simple hacksaw followed by a flat file to fine-tune the cut.