Personally, I think you should have just fed F/T and be done with it. But I have to say that I am a little appaulled about your crushing feet and heads! That really is not humane in anyway! Don't get me wrong I have a female pastel that right now only eats live, and since I want to breed her next year I will continue her on live, but there is no way i would treat her food cruelly. Which in my opinion is what you did! There are more humane ways to offer live food, such as stunning or pithing.
Mike Kelly