Gizmo was all over that chart.  It's tough to predict since they go through growth spurts.  At one point I thought he was going to be ten pounds! LOL!
 
Six months is about when Gizmo was neutered. 

  You can have any remaining baby teeth taken out at the same time that way.
     
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 The fullness of our heart is expressed in our eyes, in our touch, in what we write, in what we say, in the way we walk, the way we receive, the way we need. -Mother Teresa   (
 RIP Gizmo 3/9/07-8/18/12)