That fading looks exactly right, PJ. Your skills are showing!! Really prime work!
And here's some progress I've made in 1/72.
Cut an arc using my bright, shiny-new circle template. It took a couple of attempts to get thing even close to workable.
Applied it to the spinner which I'd previously painted white, masked the lower portion of the spinner.
Added the red.
Masked that and stuck the thing upside in a mess of ticky-tack on a bottle cap for handing. Painted that.
And the final result after some re-masking the red, and spraying some white touch up to even things out; followed by some very minor brush touch up.
Enlarged this much, the demarcation lines look a little rough, but from normal viewing distance, in this scale it is not evident.
Should mention that before I sprayed the red and schwarzgruen, I sprayed around the mask with white paint to seal things as much as possible and prevent paint bleeding under the mask.
Very much appreciated learning this technique. It was new to me, and I'll be practicing with it to refine my skill with it.