I started off the day by flipping the wing 180 degrees so that the top surface is facing out.
I had already drilled and formed about half of the ribs for the right wing. I used one of the pre-drilled ribs to mark off the un-drilled ribs. It was tough to get the drill centered in the hole, but some amount of slop is acceptable because this is only routing cable.
I used my unibit to drill out the ribs.
The ribs on the right wing were fluted.