I am going to face solid 4.0 players this year in usta doubles competition which is a new experience for me. What should I expect to be the biggest differences between playing against top 3.5 players to playing top 4.0 players? I have a decent all-court game with emphasis on my big serve and powerful forehand groundies. My return of serve (mainly backhand side) is probably the biggest weakness of my game. Volleys and overheads are reliable but not huge strengths. I can play well from any position (ie. close to net, at service line, at baseline, way behind baseline, etc.). I rarely lob unless I'm completely on the defensive and have little choice, and usually choose to just pound it between the opponents when they are both covering the net well. How do you think I should approach matches differently against 4.0s?