Hi I am new to this sight. First and foremost I am not a physics student just an old lifelong observer and practitioner of monkey see - monkey understand - monkey turns thought on ear kind of guy. I have a basic grasp of math with the handicap of dyslexia. The consequence is, I estimate everything in my head. I fabricate machine and build most of the components I want. I saw an auto suspension forum on this site and thought I would join in the fun.