7 weeks: 12.8lbs
7 weeks, 2 days: ~13lbs
7 weeks 5 days: 14lbs
8 weeks 2 days: 14.6lbs
9 weeks 1 day: 15.4lbs
10 weeks: 19lbs
10 weeks 5 days: 20.5lbs (weighed in the evening after dinner)
12 weeks 5 days: 25lbs
14 weeks 2 days: 28-29lbs.

He's on the thin side again, but I like that. He was getting too meaty. I'm still trying to find a good balance of what to feed him.