BMI IS pointless and bogus.
Any index that says an athlete is obese gets BS called on it.
I don't even bother calculating BMI... i use a body fat percentage.
When I started in late january, I was 225 at 5'6... body fat percentage was 35%.
Now, I'm at 168, still 5'6 , and my lean mass is 125 lbs, 25% body fat (I have at least another 30 lbs to go)