Moved Fuselage to saw horses so I could transfer the bottom. Clecoed top skin in place to chech for alinement. At first the holes didn't match up at the longeron holes, then I discovered I had left out the spacer gusset. After installing the holes matched up perfect. Proceded to transfer drill forward fuselage to longeron to 40. Clecoed top skin down and started transfer drilling to 30 until I ran out of clecos.