Hi and congrats on getting a new furbaby. My Georgie is 3.5 lbs full grown, and I don't think it's a huge difference. However having said that there are some things that I have been a little more careful with i.e. making sure he eats, but I am sure you do the same with Bailey. Georgie was 1lb when I brought him home, I was just extra careful with everything still am really. Good luck and again congrats