Surprised there apparently hasn't been a thread about this yet. I had heard from a friend that a specific event in the NE area precipitated this announcement, but I can recall at least one previous occasion where competitors became convinced that the scoring machines in use at a competition had incorrect timing (regardless of stickers). That specific incident resulted in one competitor being black carded. The basic issue is that there is no easy way to demonstrate that a scoring machine has the correct firmware/timings. Some machines are programmed to give certain audible/visual indicators which are specific to firmware versions, which is a good solution (assuming the officials know how to interpret those indicators). For other machines, the machine provides no help, leading fencers to make up their minds based on "feel." The rules do not prescribe any resolution to such matters. I'm curious about other's feelings on how widespread of an issue this is, and potential ways to address it.