I think that the fundal height thing is a bit overrated too hun.
Although i am the opposite, My measurements have all the way through been around 5cm or so ahead of weeks.
I actually had the resident OB who is doing my caeser this week feel my belly,,, then measure it and say "my god, no wonder you are going to be glad to have this baby out!!" lol
I know bubba is big,,,, but considering DH is 6ft 4 1/5,, and i am barely 5ft 5,,, I dont think that bubba will be like 11lb or anything,, just long. So I would take it with a grain of salt .