When I buy a bass one of the main considerations is weight. A perfectly balanced bass is comfortable up to around 9.5 lb's but I usually hope for under 9(my current 5 string is a hair over 8lbs). I've found that most basses I receive are either spot on or slightly over the advertised weight. Which is fine. A few ounces can be method or calibration error. Every once in awhile I get one that is far over. Received a new bass today that was advertised as 9 lbs but weighs 9 lbs 13oz. And it made me wonder what other peoples expectations are. If it's a few ounces I don't care but where do you draw the line?