Way to go Tucker! And congrats to Mommy too.

I've always noticed a big change in puppies when they get to 6 mos of age. It's almost like a light bulb goes off in their little brains...lol
Both of mine took until 9 mos until I could completely trust them, but they started to 'get it' at around 6 mos. For those of you with young babies, there IS hope!