I agree with KC and Patrick. Food for BP's should be as round as the thickest part of the snake and at max, maybe a bit thicker. Of course, leave the BP alone for about 2 days just to make sure it is thoroughly digested.

If you are going to bounce up to rats you need to be prepared to help the snake from getting bit by the rat in the first 3-4 secs of grabbing it. A rat's teeth are much larger then a mouse and could do some heavy damage to a snake not used to larger prey.

You are doing a great job so far paying attention to all the details with your snake! We hope you take the best advice that fits you!