i personally a) wait until they’ve gotten some meals down (2-3) and b) read their body language - i think it’s visibly obvious when a snake has settled and established their enclosure and when they haven’t based on their body language and how they carry themselves within the habitat - which is to say, even if it has been 2-3 meals *and* they’ve shed, pooped, etc - if they seem bolty or shy still, i tailor my socialization strategy to that - handling is a relationship that you have to build overtime
like Bogs said, we are *really* asking them to take a huge leap of faith by trusting us that’s running against millions upon millions of years of learned survival behavior