Dad came by to help with the project. It was great to have his help and company. We finished deburring the Vertical Stab and then moved onto dimpling all the parts.
We also countersunk the rear spar and the doubler.
Vans advised me to fill the "extra" hole with a countersunk rivet. I didn’t get a reason for the hole; I assume it was an alignment hole in the doubler used in machining.
The long rivet set arrived to tackle the six rivets left on the HS. That longer rivet set did the trick it worked great.
