Cut out slot in nose skin (12mm x 40mm) at rib #4 for front upper strut fitting to fit through. To drill strut angle we set it in place, drew an outline with a marker. Then, removed lower rear skin (7V7-3) and clamped strut angle in place & back-drilled through existing holes in skin. Had to notch Strut Angle for the Front Strut Fitting, also, had to cut 3-mm off bottom flange of Front Strut Fitting Doubler to achieve proper fit to assembly. Drilled & clecoed strut angle (7V8-4SP) to rib # 4.