@naviatik: Thanks, Martin. Basically all is well with the Su. I have paused the project as I can't force myself to take a decision which clear coat to use.
I'd like to have her more on the glossy side of matte, but on the other hand I want all decal films to disappear and (@gkittinger) all weathering effects to survive.
I'm calling that my clear coat blues as this indecisiveness happens to me practically every time that a project comes close to finalization. So while I was waiting for some brainwave I started the Ducati project as part of the Year of the Cat group build.
In parallel to building the Duc, I've used one of the Su's tail fins to trigger a decision regarding a clear coat. It's painted with semi matte and I think I like it.
1 attached image. Click to enlarge.