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If you use the Ivanko Super Gripper then you may want to try my free calculators to help with determining the various spring settings and resulting tension. A donation is appreciated but not required. Below is a link to a page where the calculators can be downloaded.
Please note that due to variations of spring tension and hand placement that the actual tension results may vary somewhat from the calculated tension. The results are intended to be relative. For example, a setting that has a resulting tension of 150 pounds is more difficult than a setting that produces 148 pounds. |
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