Re: Geeze Lulu - way to go! =/
The meal may be a little small for her, but not by a whole lot, and certainly not enough to be telling him to go bigger.
I've had some snakes that stay on pups well into 500gram mark, not because I want them too but because they refuse bigger meals. They grow at their own rate.
Backwards meals will happen now and again, just keep an eye on her and she'll be perfectly fine.
Some people go for 10%-15% but I never go above 10% body weight for a prey item, no need too, I find they don't really absorb that much of a meal anyway, like my adult females (biggest is 3000+grams, most around 1700), they never get a large it's just not needed, a medium is as big as they get, and all males full grown only get smalls.
They're all great. ;) Although, sometimes no matter the size of the prey they will look uncomfortable, just happens if they swallow it oddly (backward) or they're trying to maneuver it into a better spot in their bellies, so it may just have been that and not a big meal issue.:)