We've been working on sitting in the Bumbo and, of course, neck strength...I know there is some negative info on the Bumbo...but she doesn't sit in it long enough to hurt her. I've been trying to take pictures everytime we sit her in it.
8 weeks old
2 months old
10 weeks old
12 weeks old I can totally tell that she's getting stronger and better at sitting up. We'll keep working on it!