The more and more I look at the B Mobile the more I like it. I have a Pretty Boy now, and it works fairly well, but it is a pain to carry (despite the name Carry-Lite, its still cumbersome). What I like about the B Mobile is that the bird is smaller, a little bit less imposing, and the head isn't quite as lit up as the Pretty Boy. All of these I feel would help a 3 y.o. bird finish, feeling like he could get the best of the B Mobile, when the Pretty Boy might well make him tuck his tail and run.