Thanks to all who responded. I'm sorry I posed the question and then didn't check in for a while. It was a very busy weekend!
Don (et al), I, too, like to use the Testor's line of Model Master enamels. I guess the key is to layer it on with successive coats as Stik mentioned. I think that's a really good idea.
I LOVE the Tamiya primers! On this set of rockets, however, I used the Testor's Model Master brand out of the rattle can simply because that's what I had on hand and I was running extremely low on my Testor's primer. The MM primer went on wonderfully though. I just hope I can cover up the greyness of the Testor's primer sufficiently.
I've just had bad luck with white paint in the past which is why I tend to avoid it at all cost. But then again, that was in my younger days before FSM and its forum came around to teach me a lot of good stuff.
On a side note, Don, I know what you mean about how you can practically vary the sheen of the paint especially if using an airbrush. A couple of nights ago I applied some flat dark green to an A-37 on which I'm working. I started off with a couple of mist coats and then applied a wetter final coat to top it all off. Even though it's a "flat" paint, I'm now kind of wondering if I even need to bother with a gloss coat when it comes time to apply the decals! I'm not going to say the flat paint came out glossy but there's definitely a very smooth sheen to it.
Eric