Hi guys!
I have 3 BPs in my collection and I am unsure about when to move them up in prey size. My largest female has been on small rats for about 4 months now and she is starting to look "not as plump" as she used to. She is shedding and adding length, but I can see a slight defined spine on her and she is not completely round (like a sausage). I am somewhat afraid to move her up to medium rats (there seems to be a big difference between the smalls I have and the mediums I have), so I'm not sure what to do at this point.

Do you have any pics of what you would consider a slightly "underweight" BP vs. a "healthy but somewhat lean" BP?

I will try to get a current pic of her tonight or tomorrow and post it. She just shed yesterday and tonight is feeding night, so it may have to wait until tomorrow.

Any help or experience you guys can share on this issue would be great!
Thanks for your time and help!