I am a sucker who can not say No to an animal in need.

[Bogertophis]

He's actually CBB not WC or LTC, which would explain the mellowness in part. He's still a buzznoodle and not to be trusted.

I had a CBB Western diamondback too, & she was one of my most consistently "squirrelly" (ie. ready to bite!) rattlesnakes, & never to be trusted, so there's a lot to be said for genetics.

Some learn, adapt & retain more "calm" than others- each is always an individual- best to keep a healthy respect for them.