That's what I've done for the past few years. All oranges, reds, yellows, light blues, dark blues, bright greens, darker greens, purples, pinks, etc get blended into an ever changing house color. If someone isn't picky I use that ink, or use it as a starting point to make shades that aren't Pantone specific. I usually try to tell people that there may be color variance on repeat printings and most people don't care too much.