I drilled off the L/H horizontal stab skin due to that double drilled hole that the previous owner gifted me with. Didn't have any obvious blow outs of any of the sub-structure, so I went ahead and ordered a new skin, aft spar & the service bulletin for the main spar doubler. To save on shipping, I also ordered some hardware & the sb for the elevator hinges and the inbd aileron hinge doubler. That stuff should all show up early next week. I still need to drill apart the aft spar doublers on the L/H side. I'm hoping I can reuse them. I'll put a gauge on all the holes after it's apart just to confirm that the holes are still in spec. The Horizontal stab is one of the first things built, so I'd expect it to have the lowest build quality. I looked at it pretty closely as I was taking it apart and I cant see any major defects with what they've done. All the internal structure was primed and the rivet tails appeared within spec. Makes me feel pretty good about the rest of their build quality.