Now that the VHB adhesive tape had a chance to cure overnight, it was now time to do the double-flush riveting along the trailing edge of the right flap. As before, I used the hand squeezer with the "safety-pin style" angled dies to install these rivets and it went very smoothly.
Then there were a number of pulled rivets to install on the remaining ribs, which each required those holes to be final-drilled to a slightly larger size for these rivets. Finally, just a few more solid flush rivets to install along the inboard and outboard edges of the flap by using the hand squeezer again.
The final amount of relative twist between the two hinge brackets ended up being 0.2 degrees, which is the same as the twist in the left flap, and seems like an acceptable amount.
What's next? With both flaps fully complete, it's time to finish up the ailerons as well.