I have an 03 red MU and an 04 red city. When I showed them to Cory at RDC, she said my 04 looks more like an 03, which I agree. She thought that maybe in those early years some of the first runs of years might’ve had some of the dye from the previous year. So, Deco, maybe that’s the case with your MU that came with the 04 card that looks more like an 03.
From the pictures you showed, the red with more orange is a typical 04 and the red with more blue is a typical 03, which 05 RT was modeled after. But agreed that you probably have 2 04s and maybe one of them has a little dye from 03.