I got out just as Auto Cad was taking ahold of the Drafting Business. I had a Drafting/Graphics Co. downtown Houston and worked mainly for the small Oil Companies that didn't have a draftsman on staff. When I was in the business we did it all by hand (ouch I'm old). My oldest son is a geo-tech now and they even give him an override - - - - - that was unheard of when I was in the Bizz.
Didn't mean to hi-jack your thread - - sorry !