That picture of the wild boa, is definitely obese. I understand every body is going to do their own thing, I'm just offering my opinion. I have never heard anyone say to feed boas by the 10-15% rule. Never. And those very first baby pictures of cloud where you said he was skinny, he did in fact look to be of of a healthy weight then, not skinny. Boas should be boxy shaped, not round. When I first got boas, this is what I read everywhere. As well as was told by a person very well versed and experienced with boas, whose advice I trust completely. And I have been feeding my boas according to that and they are doing fantastic. And still seem to be growing crazy fast. My female will be 2 in May. I'll try to get her out later and get you a full picture, maybe with a foot in it for comparison. And this is a female.