A lot of it was to do with his body type; long arms, barrel-bodied. When Langford started to fill out he could really put the weight away in that stocky frame of his. From 140-175lbs he was at his absolute peak. When around the 200lbs mark he was described as appearing "fleshy".
My dear friend, get yourself some manners. It is a difference. 40% at hw do not mean as much as 35% at a lower weight class because there are these diminishing returns. 7 pounds more or less does not mean much at hw while it's a whole weightclass when you look into the lower ones. There is a reason for that.
I don't think I'm being rude. I also can't believe people still want to fight about this... it's somewhat off topic. Again 40% is 40%. I agree that a 7Lb jump, from 140-147 for example, is more impressive than 168-175... but I'm talking about percentages. 140 + 40%= 196Lbs 168 + 40%=208Lbs wouldn't you consider that equal?
I feel today Langford would have fought at 160 - 168. Fo r years he was the best middle in the world but all the top guys refused to fight him .