A male ball python eating large rats??? Holy cow! Even my 6ft BCI girl is only fed on large medium rats. Oh nm I just read the weight as well. 100g rat is more between a large small rat or a medium rat. That sounds better lol. Large rats are around 250g. Anyways my pied girl is like that, she is ALWAYS hungry even though she gets a weaned/small rat every week and she weighs around 500g. Some snakes just love to eat. Btw after about 500g, the whole weight of meals goes out the window. Then you eyeball them and give them something as wide as they are, generally a small to medium rat every week or 2 weeks. If you are just trying to get rid of the 100g rats then maybe up his feeding schedule to maybe 5 days but personally I would just leave him at one per week. The snake definitely isn't going to starve. Also remember, a fat snake is not a healthy snake. The breeder I got my sunglow from told me his first boa he ever owned years and years and years ago, he just fed it once a week and it died after 10 years from a heart attack from being too fat. I mean I personally have never really heard of a fat ball python but I know boas do MUCH better when kept lean and mean. now that said, my Colombian girl is rather chunky but she loved to eat and I felt bad holding food from her. Now she is paying for it with a diet lol.