Here are some pics of some of my '07 to give you an idea about body size.



Close up of the girl on the left (150g - smallest in my collection)

Chunkiest girl of mine (255g)


All are about the same length, and all are in good shape. You can still see the backbone in the the smaller snakes, but it's not sunk in (which would the the case of a thin snake).

Maybe post a picture and let us gauge the snake for you as well, if you're able. Otherwise I think that it's a good plan to stick with the multiple fuzzies until you're more confident about their feeding. It's definitely likely that a lot of that first weight was due to the feeding. There's very little likelihood that that defecation right after had anything to do with the meal consumed the day before, imo.