Thank you. He's a dapper young fellow.
I do think snakes (can) recognize one person over another by scent, etc. but more often than not feel secure when they are properly supported. People used to snakes and their own individual snakes tend to do a better job supporting them and making them feel safe.
Feliz, for example, is just as chill with my mom, my niece, etc. holding him as when I do because they know how to properly support him and make him feel safe and like he's not going to fall.
I think snakes are pretty simple creatures. Feliz might be more "used" to me and recognize my scent even, but he doesn't feel less "safe" when someone else is properly supporting him/holding him.