I just got my new ignition control module from Rockauto.com and I have to say, it doesn't look like an actual AC Delco like I expected. It looks like a cheap repro. I don't think I'm even going to install it.
I also ordered an AC Delco unit from RockAuto not too long ago after noticing that AC Delco apparently has started remanufacturing the ignition modules. I agree that it does look a little different (i.e., black potting material) but it tested out just fine on the Casper's tester. Not a bad price either.