15-Aug-2013 After two unsuccessful rounds of using the scriber to mark the handrail positions, I realize my problem is I have not adjusted for the different jacketing diameters for each course. Also, my measurements are based on the final handrail position away from the jacketing, not the handrail stantion mount point. So I try running a string down the length of the boiler as if it was the handrail. Thinking I could then use a marker to spot the stantion points over the string. This does not work because the angle of the marker changes where the spot on the jacketing ends up. I need to hold the marker to point to the centerline of the boiler to make this idea work, so I scrap this attempt too.