Brief Description: Aft Deck: Level it and drill it.
Next is the aft deck. First thing is to level the fuselage and rivet the aft deck with zero twist in the fuselage. So I leveled the fuselage for-aft first by putting wood under one end until it was level. Then I leveled the mid-fuselage side to side and clamped it to my saw horses.
The aft deck was only 0.17 % or about 1 degree off. Not much. I was able to just twist the fuselage with my hands and measure it again and it stayed level with zero twist.
I clamped the aft deck in place and drilled it being careful to maintain the zero twist.
