Dale, as a suggestion on the lighter colour, you might want to try and stay in the same colour ranges. RLM 66 is on the bluer side whereas I find 02 to be more yellow/green. I suggest a more blueish light grey like RLM 76 or something close to that, keeping the brush very dry in that case sice the 76 is VERY light. If you use a darker shade than 76 but lighter than 66, you can put more on. It takes a bit of fiddling until you find a result that you like so I'd suggest you experiment with different colours and see what you end up liking.