Received a new/better 6-flute countersink, and put it to good use countersinking the remaining holes holding the root and end wing attach angle assemblies to the spar. Fitted the assembly to the left spar, and both end attach assemblies.
Drilled-out the driven rivets for mounting SNX-W11-11 vertical stiffeners.
Test-overlapped the wings twice to see how closely the piloted alignment holes line up. Things looking good.
Spend some additional time reading the plans, organizing parts, etc,