I'm 75 years young had open heart surgery twice the last in March which I am still recovering from, been welding since I was 12 and building engines since 14, built cup engines 19 tears,street rods 3years,made glass blowing tools 9 years,hard faced cup cams,short track cars 2 years, and building models since 1958 and enjoy more than any of the other things I have done, almost forgot I had a flywheel explosion in '73 spent 17 weeks in the hospital have a 2 inch shorter left leg and get to wear a 2 inch built up boot.