I continued with the rudder and VS tips (remembering to bring a stepladder). There is a huge gap there, about 5/16", which will have to be filled in when the foam rib is glued into the VS tip. The other elevator went easily and I discovered that the HS tip from the other side fits perfectly, so I have a template for the tip when I continue tomorrow.
Rivet count: 40 (0 redo, 535 total redone) Total: 17202 - Plus 549 done at Van's