I was just rejoicing about the return of Testors flat aluminum enamel at my LHS (that color had been missing for awhile).
I needed to get a fresh can of Krylon primer, which I go through quickly- I use a lot of it. Went to local Walmart. I noticed on the shelf a color I had not seen before- matt aluminum. Picked up some and used it on a kit yesterday. It is brighter than the Testors aluminum- almost more of a matt silver. And, it is not as flat as the Testors- more of a semi-gloss. Still, at the price of Krylon paint, it will be very useful. Quick drying, and even if I use it for a base with a coat of Testors over it, it will be a good deal.