How'd that go? The tricky part is getting all the old stuff out, right? Did you use a kit?

Building codes usually require new bricks for safety. Old bricks might have hidden problems that could cause trouble later. While @parkertorres mentioned electronics, bricks in walls need to be reliable, so maybe it's not so bad.

Running the simulator is a smart rule, but your hands-on knowledge has real value. When deadlines are tight, using your skills can be the right call. Your team is focused on safety, and that's important, but a perfect cut shows your method can work. Rules are there for help, but they don't replace personal skill. This one time doesn't mean you'll always skip checks. Your confidence in your work is based on experience, not just luck.

My buddy fixed his by slicing it thin against the grain at 160.