Yes, when you take the original knob off, you have like a top with a slot in the middle. I chopped mine to so the top was flat, took off the 2 bits, it does shorten back and forth movement of the hand. Ooh er!! lol.
All linkages are the same length, OE and aftermarket, it's to do with position of the big ball on the vertical lever itself. The lever stays the same length, positioning of the ball higher or lower determines the shortness of the shift. The higher up it is, the shorter the throw.