Thanks Tango .... I think I remember which one you were talking about. However, like you, I think in all my moves/ deployments there's probably some issues of FSM out in the middle of the desert somewhere ....
... I've found a pretty good write-up in "Scale Aircraft Modelling" by Stanton, which details a build on an F-104 Starfighter.
Here's how I've decided to tackle the exhaust on my MH-6. I plan on starting with a base layer of aluminum, followed by a layer or two of blue colored Future to give it the heat discoloration. Then I'll go over it a few times, until I'm happy w/ it, w/ the thinned jet exhaust from MM. Depending on how it looks then, I may or may not go over that with the thinned interior black from MM.
That's my theory at least ...