Wish I saw this a few days ago. I figured out how to CS by hand with a deburring tool. Came out ok. Happy to say, i use a cage on all my other CS work.
One quick note, If you use a back rivet set on the manurfactured head of that rivet, use electrical tape on the manufactured head and push real hard. Or, your manufactured head will bulge up.
working on empennage
EAA Chapter 186