my experience has shown that the smaller the board i use, the better pump i get, and therefore the better glide. for example, my Cabrinha Swift midlength board at 6'2" 100L is harder to pump then my Appletree DW Prone 5'7" 57L board. But the Swift is obviously much easier to get up in light conditions. Smaller (and stiffer) boards are more responsive to your input, and therefore seem easier for pumping...at least, that how it works for me.