I see this too. and i not sure what it is at time people being cheap, hard to get proper sized rodents( I know ifi ask for a large mouse I get a small one ).. I seen this too. I adopted a snake out to a girl who wanted one but returned it like 3 months or so later cause they could not get a permit to keep it ( De funny and the upper counties are funnier.) but the snake left my care at about 150 grams ( i kept the nonfeeding sibling ) when I got the snake back it was only 350 grams and my problem eater had turn around and eating lke a champ ( never turning the meal down) at about 700 grams. now they about the same weight since I offer both food weekly and at first givign the little returned one a mouse as atreat mid week till she caught up with the other snake.

Sadly I don't keep feeding records too much even with the dephi program ( cause it not in the reptile room ) and i always mutli tasking when I feed,clean and such things with th snakes. ( might be why I so use to getting bitten since i smell like a mouse or rat from feeding the other snakes lol.. and the rats are lbiting me cause I smell like something that will kil lthem ( not that thety far off) so I so use to getting bit I don't even think 2x about it lol)