Scott it would be interesting to hear a little more about the type of flying you do and your aircraft set up.
Do you do much aerobatic flying (big numbers on the G meter)?
What kind of strip do you operate out of?
Engine size and prop type( one or two blades)?
I'm sure Mel is right about the Elevator trailing edge radius, particularly after 13 years!
Did you apply the RTF to the stiffeners?
Have you seen any cracks in the rudder?
Were the radius bends formed on the Rudder and the Elevator the same?
Randy Lervold did quite a lot of work regarding the .016" vs .020" skins and came to the conclusion that if they were formed properly and the RTF was applied there was little to worry about, I'll wait and see, I'm not ready for flying yet and I have .016" skins.
Now the cracks in the wing skins near the walk on reinforcement is a bit of a worry since I'd not heard of this one before!!
Just trying to reassure myself that 15 mins in every hour would be OK upsidedown................!