Why did sugar ray robinson like to use the long hook alot?

[Andre]

When he threw hook punches he seemed to like the hook punch in which the arm was stretched out at an angle much larger than 90 degrees.

I have been told that the best hook punchers always bend their elbows/ arms at a 90 dgree right angle.

Well Sugar Ray Robinson was a master boxer so whos right?

Because SRR understood marketing. You have to be special to be able to sell well

Yeah for sure. He fully sold him a left to the liver.