Hey Larry,
I, like SubarooMike, like to use pastels. I've tried using my airbrush like Steve, but I have more control with pastels. In addition to pastels, I like to use make-up. Specifically eyeshadow. (Yes, you read that right: eyeshadow.) I picked up a couple of small eyeshadow kits for a few bucks. From what I've seen, they're very similar to Tamiya's weathering kit but way cheaper.
The good thing about pastels and make-up is the fact that you can "erase" any unsuccessful attempts with an earbud and some water.
If you're interested, see how the make-up and pastels worked on my Hasegawa F4U-4.
Good luck with your build!
Cheers,
-O
PS: Your A-36 looks sharp!