On Wednesday, September 25, 2019 at 5:59:46 AM UTC+3, JS wrote:
Does anyone have a wing root mod for the Duo?
That sharp 90 degree junction on the underside of the wing is right out of the 1970s.
Contacted the usual suspects:
Streifeneder.
US S-H rep.
Lindner.
...With no luck.
Where's Rick Wagner when you need him?
Thanks!
Jim

I can only imagine the conversation Schempp has had:

Young engineer: "All our competitors have hi-tech CFD wing-fuselage junctions, ours so prehistoric you cannot even seal it with tape. Would it be time to do something about it?"

Tilo: "Nein"