Pilot drilled the front spar line and center ribs. The rear spar line will be layed out after trimming to match the spar and establishing distance based on hinge width.
Using the end ribs as guides I was unable to establish anything close to a 60 pitch that did not result in a hole falling on a rib crimp. So, these locations will be establised after the ribs are positioned in the closed-up stab.
