Adam
If you establish a collection; it's good to know who eats everytime and who doesn't. I still offer all mine food, but have a "garbage disposal" big snake or two I give anything uneaten to the next morning. I hate throwing out mice, but will if it's a new acquisition or sickly snake that refused food. Just use your judgement and don't make your "garbage disposal" a woma or piebald bp or something irreplaceable. Bulls and black milks have been my choices! I keep index cards of all mine, and make a mark when the snake is blue, besides feed/shed records. This helps a lot, and is good for reference come breeding season, etc.