Testors are great, but also worth trying are the Humbrol enamels, I find the Humbrol camo colours have great colour pigmentation and go amazingly far! 6 tiny tins of #94 desert sand were enough to spray (airbrush) the entire upper surfaces of my 1/6 scale 96" span Fiesler Storch. The Humbrol enamels can take quite a bit of thinner also so don't let the tiny tin size fool you...

Another weathering tip- use finest grade steel wool and rub carefully vertically top to bottom on fuse and chord wise along wing (not in circular motion). Do this straight after colour application before weathering e.g. washes etc. The effect gives an appearance of painted metal....


Cheers-