Another thing that occurs to me: remember that it's mostly our approach that scares snakes, & one way to avoid bites is to use a small snake hook to just
lift up your BP (aim for mid-body) & put him onto your hand, & at that point I'd cuddle him next to me so he feels sheltered & safe. Snakes hate being out
in the open, instinctively knowing that's asking for trouble from predators by being so exposed. See if that helps him get to know & accept you better? You'll
want to sit & hold him (very low key, keep your hands fairly still & underneath him to avoid nips) for 30 minutes or so, to give him time to learn your scent &
touch, & to learn to relax in your presence. Now that he has more cover in his home, he eats better but feels bolder, lol. Don't worry, this phase will pass.
I didn't remember exactly how old yours is now, but yes, he's young anyway, & still learning. It goes for snakes of all ages that it takes time to work humans
into their world...we're not in their original script. Snakes mostly all learn to accept us when we're patient & show them there's nothing to fear. A snake that
still hasn't learned to accept handling may as well be a "baby".