Say you are much better player than your partner. When every heavy topspin shots which is high and deep your partner will yelled Let in bounce. Will you get annoyed by that. As a solid 4.0 player you should be able to judge it yourself, when to hit on the rise or hit it at the back fence. I experienced this only partner with those who keep telling about their past glory. A lot of times I lost concentration like I am a novice on the court. I am playing on a team but really can't take it anymore. Just wait for the moment to come and quit the team.