This problem with the knife jigs is not on the Tormek folks radar. These jigs are very old and antiquated and no one is concerned enough even though they do have issues with symmetry. There are solutions that have been shown from various folks out there and it would be nice if Tormek would make an upgrade. There are a plethora of these old jigs and change is hard cost etc... every manufacturer goes through growing pains. They have made great strides with their jigs and machines. Now to move on to the new innovation of the knife jig.