Connors' serve has often been considered very weak. I agree that his serve was weak compared to other pros, though I remember he served quite well when he won Wimbledon in 82. Yet like most pros he won the vast majority of his service games. Do you think his serve gave him an advantage, or do do you think the other parts of his game were so good that having a serve which merely started the point was enough for him to win most service games? If you look at other great champions of his day, they had serves which won many cheap points: Borg, Mac, Lendl, and later: Becker and Edberg (despite its lack of pace). Wilander's serve was weaker than those guys but it looked much more of a weapon than Connors' serve. I find it amazing Connors had the success he did with such a weak serve.