So I was born in a country where the name format is usually <First Name (and optional Second Name)> <Mother's Maiden Name> <Surname>. An example of this would be John David Heckler Koch where John David would be the person's First Name, Heckler would be the mother's maiden name and Koch would be the surname.

A few years ago, I got naturalised in a country where the official documentation only consists of First Name and Surname. Due to some administrative person's wisdom, they bundled everything into the First Name, and left my Surname on its own. Using the example above, my first name is now John David Heckler and my Surname is Koch.

All my FF accounts and airfare tickets since the beginning of time have just John as the first name and Koch as the surname.

My question is will I still get PreCheck on my boarding passes if I continue to use just John Koch in my tickets and FF accounts, or should I now start using John David Heckler as my first name? I know the first name will get truncated anyway, but it's still kinda annoying if you ask me.