I'll not only use them, but I'll be fairly certain that they'll work. Unlike the charlatans with their snake oil, there are brake tests that are encouraged and definitive, with their outcome being independent of the faith of the tester. Also unlike these charlatans, the brake manufactures do not take those who have used their brakes yet nevertheless die a horrific death, and claim that the victims deserved their fate - gleefully including those children in the back seat.NetDoc said:Aren't they? Go ahead and refuse to use your brakes.