While the Fuel Tank was mounted on the Wing Spar, the holes for the Attach Brackets were match-drilled. I need to assemble the R Leading Edge before I can continue with the R Tank because the tank skin has to be drilled to the W919 Attach Strip which is part of the L.E. assembly. Again, I'm using the plywood inserts in the ribs to keep the ribs from getting crushed under the squeezing pressure of the ratcheting straps. Placed the L.E. on the Main Spar. Clecoed the R L.E. skin to the Main Spar Flange w/ 3/32" Clecos. I have a total of 475 3/32" Clecoes and had to harvest many from other assemblies because 475 is not enough!! Today I received the Tank Sealand from Van's