Hello. I am building the Meng AMX 30b2. The color callouts call for Vallejo Light Sand as a base color. My question is, would I be best suited using a black primer or some kind of brown etc to provide shadow and depth? I used black primer on an Israeli M51 and was pleased with the results but Light Sand seems to be a bit more yellow than the mix I used for the M51. Opinions and ideas welcome. Thank you