One of the issues with all the numbering systems I found is clean up. Particularly the systems that have an individual screen for each number. You will spend a lot of time cleaning ink out of screens with those. They do a great job of actually printing the numbers, but when you factor all the time of cleaning the black ink out of the screen for your next job that needs white ink I am not sure if you save any time. I started with stencils, thought there has got to be a better way, bought one of the numbering systems and I believe when you consider all the time involved outlined above I think stencils are faster particularly when you are doing one team. If you were doing a entire league then the system would be faster. I try to use vinyl whenever possible and if they want two color I like the screen printed transfer numbers from transfer express.