Disassembled elevator. Deburred, dimpled and primed where needed. Reassembled and did 95% of the riveting. (I almost forgot the Permatex RTV at the trailing edges of stiffeners. I had to take the elevator out of the jig and un-cleco one side after approximately 20 rivets had been set on the other side. A good save.)
I was able to use the squeezer for most of the rivets along the spar.