Again!!!!
Well I was going to build on as suggested, but it has been eating at me all day. So I decided to go and work on the other skin and as I was back-riveting the rudder stiffeners on the other side, I neglected to move my back-rivet plate as I went down one of the rows.
I discovered back-riveting does not work to well with carpet behind the rivet.
I tweaked the skin and stiffener pretty bad. So I called it day and ordered 2 new skins and new stiffeners, as I dont feel like drilling out all the rivets on the damaged skin to get the stiffeners off. Needless to say, today has been extremely frustrating.