When using a dual injector system with two colors it works great only because both colors are real close to the same temperature( within 10 deg). If one is hotter it will swirl and mix with the colder one. Believe me when you Get a two color system you will find it will work. I would suggest you get a Twinjector from Basstackle. It will be an investment that will pay dividends in the end for you. A life long tool that will make your life much better than putting a kit together and be miserable. I would not tell you this if it did not work.