Instead of using magenta and yellow to make the red on the front, select the red text, and make it a separate channel in Photoshop, so you can output as a separate film, for just the red text. You would need to perhaps knock that out of the CMYK channels. This way, you can get the bright red you want as a separate color, which of course you would also use on the back so that they match dead on. CMYK does not make every color you can see, sometimes you need to print a 5th or 6th color if necessary. If one of the colors was supposed to be a metallic gold, or a fluorescent color, which CMYK cannot make, you would need to do the same thing. I hope this helps...
Steve
