USMC,
I contacted Testors last night but have not heard from them yet. Perhaps because today's a holiday?
Their primers are hard to find on their new website. Before, you could find the 1/2 oz. primer under the automotive enamels. To even find the spray can primer you now have to do a special search on their new website. I didn't notice any primers in their regular listings.
If I hear from Testors I'll let you know what they say,
~Dave