My two corns are way easier to feed then my ball. The F/t mice/rats never get a killer coil response but a live one will automatically get them coiling. My normal(on pinky rats the other on fuzzy mice) will coil so quickly that to be honest it scared me the first time she did it. My ball refuses food and in the 2 months I've owed him he's only aten 2 fuzzy rats and a small one while the corns are a 5-7 day feeders and will go from mice to rats ,live-frozen no problem.