Completed drilling and clecoing top skin for rivets and set fuel tank and drilled for screws. This wing is going faster as I feel more at ease doing it and I know what to look for and plan out for as I go. Also I had completed the spars along with the right wing spars so they were already built. Yes the 13mm block is in place along with the 6.5mm block at the mid point on the aft spar. I put them in place when I did the ribs.