I know lame, but hey it's just for fun anyway. I tried it and it gave me the same result everything has given me, "girl". I even had my 3 year old hold the string so I wouldn't influence it, he held really still btw. Still waiting for the ultra sound to prove everything of course, but the date for that is finally set. All the charts minus one have said girl, baking soda test, gender quiz, heart rate, ring test. So far everything seems to be pointing towards girl. The heart rate was in the upper 150's lower 160's last night when DH and I listened to it and it has never dropped below mid 150's so far. BUT DH's heart rate was always in the 150's- 160's when his mom was pregnant with him, so i'm not banking on anything, but man I hope everything is right!