Had a slip up today while drilling the9.5mm grommet hole in the vertical stab rib #3. The rib wasn't clamped securely enough letting go riding up the drill deforming the hole. Only option now is to source another rib or drill the hole oversize and install a larger grommet. I re-drilled the hole to a the smallest I could 12.5mm,deburred it, took some measurement photos and emailed the factory for comfirmation on possibl options considering the larger size hole and it's proximity to the lightning hole and the rib flange.
Factory emailed me back saying it is ok as is . After looking at the load there and with no hinge point on the back the hole will have no impact on the rib.
