As a sibling to the thread we already started for the TSi, I'm adding this thread as a collection of some of the known things that often come up during the build, or things that are not directly called out in the plans, but the builder should consider.
If you have something to add, please reply and I will try to add it to the summary up here with a link to your reference.
Empennage
- Safety the Elevator Trim Tab
The plans don't mention it, but you should safety the Elevator Trim tab - this can easily be done by drilling a small hole into each end and installing some Safety wire. - PhilipRueker