I'm glad to see you are building this one, Anthony. I think you will like the build.

Sig did a good job with this kit. I didn't find much that I felt need to be changed. I did, as you plan to do, sheet the entire wing center section, and for the reasons that you stated.

I suggest that before starting the wings, you take a look at the retention system.

Although I am told that it is perfectly reliable, it makes me nervous. I wish that I had added a wing tube, which is a very simple modification, on this design.

Enjoy your build !

Here's are pics of mine.