I think I've solved my problem with the color Yellow. The problem with these lighter colors is that I don't get the uniform coverage I want. Particularly with MM colors and acrylics. Tamiya paints on the other hand go on very uniform in one (sometimes two) coat(s). However, the accuracy of Tamiya colors to FS.595a/595B standards is less accurate than Tim Wakefield knuckleball in March. To address my problem with Yellow, I'm using an approach I used with White on some of my other models.
1) I use Tamiya Flat Yellow XF-3 as a primer. One or two coats should suffice.
2) Spray on MM Chrome Yellow. Again, will have to see if it takes one or two coats.
My hunch is that the flat Tamiya colors give some teeth for the more FS.595a/595B accurate MM Acryls to adhere to, and there for go on more "uniformly". This is particularly important when painting over an NMF.
I put the primer (Tamiya XF-3 Flat Yellow) on my XF5F-1 Skyrocket five minutes ago. Will let ya'll know how it all comes out in the end. So far so good, we have have "uniformity".