Ditto!
Otis certainly is a cute little sneaky one! I can't for the LIFE of me figure out how some of them can have the proclivity of being "picky" eaters! I mean, HOW could they POSSIBLY survive if they were in the wild with such a tendency? Makes you wonder.
At least you double-checked his health & well-being by taking him to a vet! What else can you do? Except maybe try an alternative rodent source (I would, BTW).
However, that said, they all DO grow at different rates. I have a yearling (Ozzy) who hit 175-180 at around the time of his first hatchday. My adult female (Lilly) was the first to reach 3' and 300 grams at a year and a half but that's where she virtually froze while Bozo and Chili-Pepper overtook her and kept growing. At 8 years old, she hovers around 300-330 grams (475 when gravid) while Bozo & Chili-Pepper average 950 grams & 745 grams respectively, both at around 5' long (Bozo certainly is a tad heavy as was recently confirmed by some members here and I've responded by switching his meals from small rats to large mice).
My thing is that I want to ensure my little sneaky ones have the best they possibly can. Kinda stupid when you think about it because what's good for them and what we perceive to be good for them might be two different things. Knowing that, I try my best to ensure they're all well-cared for. Even the six snow hatchlings I have left from Lilly's second clutch. They are all good eaters and were all relatively large out of their eggs (9 - 13 grams!!). They should all have new homes really soon, as I am really good networker and have been touting their arrival since Lilly laid the eggs back in July! I don't advertise here because I am not a breeder for monetary reasons.
In any case, THANX FOR SHARING!!!