ash, although your comment went up twice, mistakenly, it was worth reading again. You can clearly see that a Ger had a neshama and was destined for Yiddishkeit. Things appear to him that buzz right by all his friends.
I also noticed the phenomenon that TikkunChatzos mentioned, of a Ger having a Jewish ancestor. It seems like the Neshama gets passed down, just hidden away. The Ohr Hachaim Hakadosh says something like that in the Parsha of Dina and Sh’chem.
To those who did make the decision, was it an intellectual discovery, or an inner feeling, or a deeper pull based on both or more?