Here is a bit more, to keep filling out his growth.
11 weeks 29.5lbs
12 weeks 32.5
13 weeks 36lbs
14 weeks 38.5
14 weeks 41.5lbs
OK. Here is the story. I got him from a girl who's boyfriend's parents breed bullmastiffs. She had a small female pit (50lbs) that went into heat and had an affair with one of their young males. He was big, she says, but the mother was small. My boy was the tallest and had the loose skin typical of mastiffs. I can tell you that I have trained German Shepherds my entire life, so I am used to alpha male dogs...this guy is the most alpha I have ever encountered. I will have to train him well, cause he is absolutely not afraid of anything and definitely rules my rescue pit who is 65lbs of muscle. Quite amazing, really, but I take it seriously and have been putting a lot of time into socialization. I can also say that he is smart, but not as interested in pleasing me as my German Shepherds have always been. I would describe him more like, OK. I'll do it. I am working on getting more attentive response from him. I do not know if others have similar experiences. If so, please share. I will post a picture soon.