Interesting! Today I fed a N. chromas female, a big juvenile, and I poured by accident about 12 crickets in there. She went berserk and attacked they all in a frenzy. She would take 3 at a time, kill them, bring them back to her log then back for more until none was left. Then same as yours she made a nice juicy ball and started eating.My male LP, just before he matured, grabbed 6-7 large crickets at one go, rolled them into a ball with web and sat happily chomping on it.