Tsar Bomba wrote:How do you screw up the pull on a single-blade jack? This is a disappointing development considering I have 2 en route.
Pull strength is partially the result how much material is removed from a knife's backspring(s) during the hafting process. If the hafter exerts too much pressure on the knife or holds it against the wheel for a few seconds too long, the knife is going to have a weak backspring. Conversely, if you have the intestinal fortitude to attempt it, an overly strong backspring can be “weakened” by re-grinding the spine of the knife. Hence the differences in pull strength that sometimes occur amongst knives of the same pattern from the same batch can oftentimes be explained by the hand-hafting process used by traditional knife manufacturers such as GEC.