I agree 100%. I was nervous at first to switch him from mice to weaned rats as I did not want him to regurge, so I made sure that he got the rat down and I increased the temp in his enclosure by a degree or two, didn't disturb him for four days after eating (except changing water) and only feed him every seven days. He is always hungry come feeding day.
I think the 10% rule is a great indicator to those that aren't sure of how much to feed, but if your snake is happy with what you feed then it's ok I suppose.
He doesn't display any signs of obesity and is growing really well.
I swear by feeding rats compared to mice based on the results I have seen, but whatever works for the individual keeper is what's best for them I suppose.
Here is a pic of my little guy cuddling a rat
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