Having known some weight lifters, they generally dislike BMI because they are typically considered 'obese' due to their unusually high weight in muscle, whether

Having known some weight lifters, they generally dislike BMI because they are typically considered 'obese' due to their unusually high weight in muscle, whether or not they are in good shape (typically they are). Calipers are also $10 and measure body fat accurately enough for health purposes (body building may be an exception in this as well, but only in extreme cases).