Strategy vs Technique, which comes first? 

Keeping the ball in play, playing the deeper player 
and playing to your opponent's feet.

Getting to the non-volley line and keeping your opponents deep

The Art of Dinking 

 This four minute video is designed to help new and Intermediate
players develop or improve their skills in Dinking.
A few minutes practice before each playing session
will help you improve your game in this important area.