How many of y’all have done the red cabbage gender test?

So it’s said if you boil red cabbage and let it sit and cool, and have place it in a plastic cup along with the same portion of urine and if the mixture turns reddish pinkish then it’s a boy, if it doesn’t change or stays dark purplish then it’s a girl. So I did it with my son and it was right and I did it this pregnancy and one time I got almost reddish and another time purple. So one boy result and one girl result. How many of y’all done this and got the correct gender result.