If I make sure to do by my lunar age AND the lunar month (like you're supposed to) then it's 50/50 for me and says this one is a girl. So according to it I should have had B/B/G but actually have G/B/?.
If I just do lunar age without making sure I go by the lunar month then it is wrong for both.
We also did my best friend's yesterday and it was wrong for both of hers. It said she should have had B/G and she has G/B.