Kevin, what they do is teach you where the max. point of tension is and then slowly release the tension from this point.
To locate the max. point of tension, you entend an imaginary vert. line from the base of the tree and a horiz. line from the highest point on the springpole. Where these two lines intersect a 90 degree angle is formed. Divide this angle in half and picture a line going back to the springpole. Where it touches the springpole is the max. point of tension.
The springpole can now be cut from the underneath. Stand about 45 degrees to the rear of the springpole and use the chainsaw (backchaining with the top of the bar) to shave off wood from the max. point of tension. When enough wood has been shaved off, the fibers will slowly begin to break and you can stand back and let the springpole tension release natually.