the way to detect who is a bigger man than his weight suggests

one thing in addition to skeletal size, is the potential to gain muscle size, being "anabolic".
for example, mike tyson was very anabolic. he had a big frame but also had a lot of muscles, without lifting weights.
ike ibeabuchi is another example. although he may have used steroids, but he was clearly prone to gaining muscles.

guys like jack dempsey, gerry cooney etc might have a big frame for their weight, but they were not anabolic - prone to gaining muscles.
wladimir klitschko was very anabolic for upper body muscle size, and tyson fury for example is less anabolic but has a big frame - easily bigger than both kltischkos.

 

Did Tua have huge wrists or something? I don't believe he did.

 

I know Tua was big framed. What are you going on about?

Pac did not have a huge frame. He had to eat like crazy to keep his weight on in the upper divisions.

 

I have a Garry mason like Swede! A real big head on my six foot 16 stone body! I wonder if a big bonce adds weight? It's definitely not brain weight must be thick skull!