Dan explained that if you leave the edges at tip and tail of the skis as sharp and defined as the machine makes them, you will have a hard time either initiating a turn or trying to come out of a turn on the slopes. This is because the sharpness in the tip and tail works to continue your skis through the direction of travel – either straight, as you shift to turn, or through the turn, as you shift to come out of one.
After detuning, the edges are deburred with either a fine diamond stone or a deburring pad. As it sounds, this process takes off any sharp little burrs not filed off by the edging machine.
Jack and Dan's Tip: Not detuning the tips and tails is the step most ignored in the at home do-it-yourself tuning process and can make for hard work on the slopes, so remember: SDD the ski; Sharpen, Detune and Deburr.
