I initially staple at four locations, after measuring to make sure everything is centered: first at 12 o'clock, then pull tight and staple at 6 o'clock. Then pull tight and staple at 3 o'clock, pull tight and staple at 9 o'clock.
From there, pick a quadrant, go to the center point between existing staples, pull tight and staple. Repeat that process over and over, always stapling at the center-point between two existing staples (and pulling tight before you do so).
When you are done, all staples should be less than 1" apart. Should never be any wrinkles on the finished side using this process.