I love the High Impact colors but love the other colors as well -Burnt Orange, dark greens etc. Matching any old color is a challenge due to type of paint has changed from lacquer and enamels to urethanes so have the toners that are used to mix them. I tried a few lesser known brands of paint and color match for my In-Violet was way off, I have been a PPG user for a long time but due to cost I decided to try the Omni Plus line which is made by PPG but costs less. My paint mix guy got the formula and it was very close to my original sample so that is what I am using. Not many use single stage these days and I would not recommend it unless you are doing a solid color and even then a base/clear is much better and not that much more expensive.