Gray, here's my view...
Laminates are "pretty" and attractive, but I believe that they're not necessary. I believe that single-colored baits are all it takes. I believe that there is no man under the sun that can out-fish me just because he's throwing a laminate. I believe that laminated baits may sell better, but my previous statements are stronger (to me) than the retail aspect.
IMHO, save Yourself the agrevation/tension/stress, and shoot single-color baits. Either that or melt both colors at the same time, and hand pour the 1st color so the 1st color sticks in the mold better...the laminate plate system can break that bond and let the 2nd color get under the 1st. My Best Advice...shoot single-colored baits...Your ice chest will stink but You'll be thankful.