I used the heck out of this app this past week. A touring company sent me their rider with 3 different brands of gel on their lighting sheets. I was able to quickly cross-reference each color and get the colors close enough to keep them happy. I had most of what they wanted but not quite the same brand. What they wanted in Rosco I had in Lee and what they wanted in Lee I had in Gam or Rosco. I dont have the budget (rather, a budget at all) to accomodate every touring group that comes here. This helped me do just that with what I had in my inventory. Thanks, guys, and Ill stop by your booth at USITT and thank you personally.