Best way to bulk up a snake?

[possum]

I'd feed slightly more frequent meals, and stick with smaller prey items, maybe 2 small ones instead of 1 larger, because the larger rodents have more bone & hair (less digestible), while younger rodents are more calorie-dense & easier to digest. Just don't over-do it (I know you won't...) as being on the lean side is good for snakes just like ppl. When I've taken in really starved snakes, I've fed small prey on an accelerated schedule as their digestion & response dictated; size of rodents used depended on type/size of snake, but pinkies are the most digestible, then fuzzies, etc. They turn around fast with TLC.