I should have read this one first. In five years the person never learned if it was a morph our regular.

Its a good practice to let a new snake settle in to a new home for 7-10 days without any handling. But if you are able to pick it up with just alittle hiss already, I wouldn't be to worried. Even the nicest snake will hiss. That's what snakes do. Now if it is hissing and taking a defensive position or striking that is different.