4.0-4.5 Players: Concord/Walnut Creek/Pleasant Hill

Hi ~ I'm new to Concord.  I play at the Walnut Creek Tennis Center, usually, but wouldn't mind playing at Willow Pass or Concord Community (closer to home).  However I'm open to any of the aforementioned cities.  Prefer doubles, combos with battle-tested 3.5's, mixed dubs is fun too. Any age, sex, race, religion or racket preference!  Or if you just wanna hit for an hr. I'm good..just love the exercise, the sun, expanding my social network and improving my game.  ~ Thx Ron