Hana and I used the back rivet method for everything we could get. The Cleveland Tool bucking bar for skins and the extension for the back riveting helped greatly. The side look perfect. Only had to redo a few rivets that were in a hard to reach area.
I installed the rudder cable guides in the rear, but I countersunk the wrong side of one. DOH! Have to order a new one. Probably a couple of bucks. If that is my biggest mistake on a part, I'll be surprised. I got turned around on the diagram.