Baking soda test!

Has anyone done the baking soda test? Did it ring true?

I did it with my first and it was right (boy)

I did it with my current pregnancy and it's looking like a girl! I know it's just a myth but it seems to be the most accurate home guess out there.

I did it both ways (adding pee to the baking soda then adding baking soda to the pee)