Well the black noseband was pretty damn difficult, as the compound curvature on the nose is pretty extreme. I actually attempted it a dozen times or more and almost gave up but the alternative was the kit decal, which is a monster compared to the line I eventually masked. 
 Naaaa..........................who am I kidding I masked it first time with my eezee peezee masking kit  :-) It wasn't easy but just required a bit of care and perseverance. The white had been masked and painted the masking for that was hard enough. I cut a sliver of Tamiya tape, using 2 number 11 scalpel blades taped together. This gives you less than a millimetre width of tape with parallel sides. I then eyeballed this around the nose keeping the same distance from the previous masking. It was difficult to see on the white nose but I did a section at a time double checking as I went, lifting and re-applying when necessary. When it was on I added more tape in front to mask off the forward end of the nose. I had to be careful around the generator prop and masked this with wet tissue. I did try laying a thin piece of tape down first, where the black band was to go, then I would have butted the masking piece to that, then removed it, leaving the area to be black. This is usually an easier method but the tape kept pulling away from the first piece of tape as I went around the nose and it was impossible to tell if it was on correctly. This was due to the white paint I guess. You can see that the band is not perfect, but that’s OK I bet it wasn’t perfect in real life and I ain’t redoing it. It is pretty uniform though and I'm pleased with it 
 Mal