Since I've always used 30/60 isometric paper and draw to scale it's very quick to whip out a pencil and straight rule and pop out a drawing. But I'm finding at the moment I can still hand draw an iso quicker than I can do one with AutoCad Mechanical. Without much experience with AutoCad I still thought this was going to be the cure all alternative to countless hours of hand drawing isometric pipe drawings. Recently my employer gave me access to AutoCad Mechanical 2017. For most of my career I have hand drawn all piping isometric drawings affiliated with my projects. I have almost 30 years experience as a pipe fitter, job planner, and pipe designer.