I have yet to see a 10' BCI. The largest boas are BCC and Peruvians to be exact. And to reach those lengths, you are looking at around a 10+ year old snake.
Basically like i said before, you just power fed him to that size in that short of time. Even continued power feeding wont make them reach 10'.
But back to the BP. You say he is shy and doesnt like to be seen but you are denying him a warm side hide...so here we go again with you imposing your power on the snake. All BPs should have a warm and cool hide unless they are in a rack in which case, the rack itself acts like a giant hide.
And you made it small, i forgot the 6 inches so we are looking at a 2x2.6 foot floor. 6 inches isnt going to mean squat on that small of a footprint. Do the snake a favor and flip the cage on its side so he has a 3x2.6x2 cage and make him happy.
And the point to the feeding video? Not really amazing as i have a 7'+ retic who eats 2XL guinea pigs and probably piglets if i let him lol. I still am sticking by my comment of that boa is being power fed or its age is way off. Thats the problem with a lot of people, they are in a hurry to grow their snakes to these huge sizes and then brag about it. You are doing nothing but showing your inexperience and damaging the animal.
Sorry about the rant and sounding like a jerk but your care for your snakes just rubs me the wrong way to no end.
I spend a lot of time on the boa FB pages and i see so many people with very good animals say they feel their animals are underfed or small. Me as well as other people on the boards have to let them know their animals are in perfect shape. The problem isnt their animal, its that 90% of the boas you see nowadays are overweight and overfed/powerfed so it has almost become the norm. I kind of blame it on some breeders to an extent but i also blame the industy. To make the big cash and stay on top of the morph market, breeders have to grow their snakes quick so they can breed quick so they can be the first to reap the highest cash rewards on said morph. Then once the guys who raise their boas correctly reach the breeding of said morph, the power feeding breeders move on to the next up and coming morph and rinse and repeat. They dont care about the long term welfare of the animal, they care about the bottom line and how much cash they can milk out of it. I also see that from guys who brag about having a huge boa that is only a couple years old etc. I've also noticed some people buy burms, retics and anacondas to seem cool and then dont reaize how big they get and once they get too big, they try and rehome them....surprise, zoos no longer have room to take all those snakes and either do shelters....
On the flip side, you almost never see this with BCC or local stuff. Most of that stuff is slow grown and fed very conservatively so you see these 4 year old BCCs on small rats and only about 4' long.
Anyways, I'm done ranting haha. just had to get that off my chest as i was just talking to a gal a few nights ago about her boa that she felt was skinny and underfed and it actually looked in awesome shape.