I just went through this with my lesser boy! However, he would strike and coil when I was watching, but he had an aversion to frozen/thawed and to live that was bigger than fuzzies. I just had to keep trying. Try to odder a small live rat and then follow it with a frozen/thawed rat. After many, many tries, my boy will tolerate frozen. He's very reluctant to eat (versus being a tremendous feeder on live), but he does eat with a little bit of encouragement. This is the trick that helped to break my boy's stubbornness about frozen food: once the rat is mostly thawed, place it in boiling hot water for a minute or two and then IMMEDIATELY offer it (giving it little time to cool). That seemed to work well to get my male feeding frozen and my spider girl to FINALLY switch over to rats. They just like theirs closer to a rat's body temperature.