In response to the E-Mail I recieved this morning.
I am truly sorry. Half way through I somehow deleted the message[:(] I missed the name as well.
This site has an article on filters.
http://www.missing-lynx.com/rareworld.htm
Again, I apologize.
Blame it on a mouse malfunction Charles…or better yet blame it on the cat chasing and actually catching the wrong mouse.
lmao@shermanfreak, maybe it was ralphy, the one cat who wants to ‘try it on’ with the F-18
It was me who sent you the email, Charles 
My question was, what colour should i use as filter, to tone down the contrast in 3-tone-camo-scheme. Thank you !!
SeaGull85, I cant really give you a specific color. A filter is simply an overall applied, highly thinned down wash, as I understand it.
MIG, the chap who brought about the interest in filters mentions greens, blues and orange shades in his article.
I suggest testing different shades on scrap plastic. I wish I could help but, I have no experience with this method.
Hmmmm…interesting concept. I had not heard of this previously.