When I left off building in 2021, I had encountered a minor discrepancy in the size and fit of the stabilizer tip rib extension 6T1-8 and the stabilizer tip. After a couple hours of trying to find my mistake, I realized the tip rib extension was simply too big.

The plans call for the tip rib extension to be 80 mm at the wide end. I measured my parts at 84 mm. As validation of the incompatibility, the photo assembly guide calls out that there should be a gap between the stabilizer skin and the flange on the tip rib. In fact, my parts leave no gap which would cause some awkward and large bending of the stabilizer tip. The bending would probably lead to cracking of the plastic.

I called Roger at Zenith Aircraft in Auguest 2023 to explain the problem. He wanted one more photo. I sent it to him today and will wait to hear back.