If you feed on the small side, do you feed two animals, or do you feed more frequently? I know they're all mass-produced, but if you feed live, and the snake doesn't take it, you don't waste a rat. I would not be able to keep rats at the moment, otherwise I would consider it.
That's good to know, and of course see above for a response to your other comment.
If you are feeding frozen rodents, and the snake doesn't eat it you just refreeze the rodent and use it next time. You can't do it more than 1 or 2 times, but you shouldn't ever have to.