My company is considering switching from Autobid Sheetmetal and Mechanical to the TSI EST products to match our recently purchased TSI CAD/CAM software. We have used the graphical interface in Quickpen for several years and are very comfortable with the auto generated fittings, etc. I'm looking for something somewhat equivalent in EST, and design line appears to be it (but it's grayed out for some reason, quess I'll have to call support for that). I did see an interesting statement in the EST-MECH forum about Ian saying that not many people are using design line for taking off ductwork. I'm having trouble finding anything in TSI that allows the same takeoff speed that the graphical interface in Quickpen has. Any thoughts?