My Index Finger: 79 mm
My Ring Finger: 78 mm
2D:4D Ratio: 1.013
Honestly, I'm surprised that the average difference between women and men is so low. Because I've actually been randomly looking at people's hands while I'm at work, and it seems like every single man I saw has noticeably longer ring fingers, while every single woman I saw had ring and index fingers that looked exactly like mine, being about the same length. So I'm surprised that the difference in averages is so small.
And yeah, I've heard about this study. Quite interesting. I first found out about it when I was looking up information on the internet back in December about ways to determine if someone really is transgender or not, and there was one question that asked "do you have any physical characteristics that are far too female to be normal?" and the 2D:4D digit ratio was one of the seven that was listed, which eventually led me to the links to all of these studies that have been mentioned in this topic because I was curious about it. And yeah, I was fascinated by my feminine hand ratio, and spent probably the next week straight looking at the hands of every single man and woman at my poker tables. And even in that ENTIRE week of looking, I was still the only genetic male I saw who had a longer index finger than ring finger, out of a good 250 people or so that I observed, with maybe three or four who were close. (12 tables per day, 9 players per table, 3 days a week, with some slight overlap in terms of regulars.) So, yeah, that study really blew my mind when I first learned about it, and observing it in real life was really fun.