Yeah, some probably were like that, who knows. I am making mine like "the norm" though. The "norm" with the '70 340 Swinger is to have the "DART" then the "Swinger" on the deck lid. I already knew this, I just wasn't sure if it was the EXACT same emblem or there was some difference. For example, the script Dodge on the non-340 cars has a curve to the one on the hood, whereas the trunk lid one is flat, so they're not a direct replacement. For them to fit correctly, you need an actual hood emblem, and an actual deck lid emblem.
I've ordered all my emblems now from Year One, but forgot to get the third ones for the deck lid anyway, so will have to pick those up later! At least now I know what to get.