well, I think they are like all snakes in that manner, if they are getting enough/ more than enough to eat, they will refuse.

My little short tail doesnt have a voracious feeding response at all. He's quite cute actually, he half asses a strike, grabs it and pulls it into his hide where he will look at it for a while, then decide he's hungry enough to eat it. (he gets f/t)

Jade, holy crap. She is the sweetest thing ever, but once I throw in a rat. !WHAM!, I think they die from impact. lol, I think every snake is different. It could be that she's full, but I cant really say.