... pumping slowly but deliberately works best for me along with bent knees, and keeping the back straight. And pumps last longer too, the seals don't heat up and fail on you,,, reminds me of a story,,, young bull and old bull standing at the top of the paddock looking down on all the cows,,, young bull says lets run down and ride one,,,, old bull says no, lets walk down and ride 'em all. !!!