Hmmmm......it can't only be a 4/4 Sport problem. My understanding is that any of the Trad range built in the past 3 years or so and having a old style 9 stud roof will use the same screen pillars. Certainly the Plus 4 Super Sports do and looking at Heinz's photos of the new Baby Doll...that has the same screen supports as well.
Jays Former Morgan owner. Gone but hopefully not forgotten!