And notice how that rat is a lot thicker than your boa. The rule of thumb for feeding boas is the prey should be as thick as the thickest part of the snake or slightly less. So it should leave no lump to a very very slight lump. And in the video, that rat is way too big. Thats like the size rat my 6.5' female eats every 3-4 weeks.
I'm honestly not here to argue the feeding of boas. People will either listen or they wont. If they wont, then they will learn from their own mistakes in about 10 years. The breeder for my sunglow overfed his first boa when he was young and it died at 10 years old from a heart attack. He learned from his mistakes as he breeds BCCs now more and has kind of gotten out of BCI morphs. And a BCC fed something big would for sure puke it up. Keep feeding your male like that and we can talk in 10 years![]()
My advice is join the boa FB pages like Boa Constrictor Keepers, Boa Constrictor JB, Pure-Locality-Boas, Boa Constrictor Constrictor and others and ask around there for what everyones feeding schedules are. You will get the same answer i have given.
Anyways good luck.