I saw an episode of snakebytes a while back where they said that there is no nutritional differences between live and f/t that is frozen for less than 6 months. After it has been frozen longer than 6 months, then the nutritional value starts to decline. Something about proteins starting to break down. Somebody might want to verify this info because I might have misunderstood it.

I myself feed live because I grow my own rats. I can guarantee quality rats and if my snake decides to go on a diet, then I just put the rat back with his family to enjoy life for a week longer. I have ASFs so they can't outgrow our bp's.